Lamborghini Diablo
Encyclopedia

The Lamborghini Diablo is a high-performance mid-engined
Mid-engine design
A mid-engine layout describes the placement of an automobile engine between the rear and front axles. Another term for this is mid-ship.-Benefits:The mid-engine layout is typically chosen for its relatively favorable weight distribution...

 sports car
Sports car
A sports car is a small, usually two seat, two door automobile designed for high speed driving and maneuverability....

 that was built by Italian
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 automaker Lamborghini
Lamborghini
Automobili Lamborghini S.p.A., commonly referred to as Lamborghini , is an Italian car manufacturer. The company was founded by manufacturing magnate Ferruccio Lamborghini in 1963, with the objective of producing a refined grand touring car to compete with established offerings from marques like...

 between 1990 and 2001. It was the first Lamborghini capable of attaining a top speed in excess of 200 mi/h. After the end of its production run in 2001, the Diablo was replaced by the Lamborghini Murciélago
Lamborghini Murciélago
The Lamborghini Murciélago is a two-door, two-seat sports car produced by Italian automaker Lamborghini between 2001 and 2010. Successor to the Diablo and flagship of the automaker's lineup, the Murciélago was introduced as a coupé in 2001. The automaker's first new design in eleven years, the car...

. Diablo is "devil" in Spanish, which is diavolo in Italian.

History of development

At a time when the company was financed by the Swiss-based Mimram brothers, Lamborghini began development of what was codenamed Project 132 in June 1985 as a replacement for the Countach
Lamborghini Countach
The Lamborghini Countach is a mid-engined supercar that was produced by Italian automaker Lamborghini from 1974 to 1990. Its design both pioneered and popularized the wedge-shaped, sharply angled look popular in many high performance sports cars...

 model. The brief stated that its top speed had to be at least 315 km/h (196 mph).

The design of the car was contracted to Marcello Gandini
Marcello Gandini
Marcello Gandini is an Italian car designer, widely known for his work with the automotive design house Gruppo Bertone, notably his design of the Lamborghini Countach. Together with Giorgetto Giugiaro and Leonardo Fioravanti, Gandini forms a noted triumvirate of Italian car designers, all born in...

, who had designed its two predecessors. When Chrysler bought the company in 1987, providing money to complete its development, its management was uncomfortable with Gandini’s designs and commissioned its design team in Detroit to execute a third extensive redesign, smoothing out the trademark sharp edges and corners of Gandini's original design, and leaving him famously unimpressed. In fact, Gandini was so disappointed with the "softened" shape that he would later realize his original design in the Cizeta-Moroder V16T
Cizeta-Moroder V16T
The Cizeta-Moroder V16T, now known as just the Cizeta V16T, is an Italian sports car created by automotive engineer Claudio Zampolli in a joint venture with music composer Giorgio Moroder and designed by the famed Marcello Gandini. It was the only product of the Cizeta company...

.

The car became known as the Diablo, carrying on Lamborghini's tradition of naming its cars after breeds of fighting bull. The Diablo was named after a ferocious bull raised by the Duke of Veragua in the 19th century, famous for fighting an epic battle with 'El Chicorro' in Madrid on July 11, 1869. In the words of Top Gear presenter Jeremy Clarkson
Jeremy Clarkson
Jeremy Charles Robert Clarkson is an English broadcaster, journalist and writer who specialises in motoring. He is best known for his role on the BBC TV show Top Gear along with co-presenters Richard Hammond and James May...

, the Diablo was designed "solely to be the biggest head-turner in the world."

The project is believed to have cost a total of 6,000,000,000 talian lira|lira.

Diablo

The Diablo was presented to the public for sale on January 21, 1990, at a base price of $
United States dollar
The United States dollar , also referred to as the American dollar, is the official currency of the United States of America. It is divided into 100 smaller units called cents or pennies....

10,000,000 at the Hotel de Paris in Monte Carlo
Monte Carlo
Monte Carlo is an administrative area of the Principality of Monaco....

 during the second Lamborghini Day. Power came from a 5.7 litre, 48-valve version of the existing Lamborghini V12
Lamborghini V12
The Lamborghini V12 is a sixty degree V12 petrol engine designed by Lamborghini, and was the first internal combustion engine ever produced by the firm....

 featuring dual overhead cams and computer-controlled multi-point fuel injection, producing a maximum output of 492 PS and 580 newton metre of torque. The vehicle could reach 100 km/h (62 mph) in about 4.5 seconds, with a top speed of 202 mph (325.1 km/h). The Diablo was rear-wheel drive and the engine was mid-mounted
Mid-engine design
A mid-engine layout describes the placement of an automobile engine between the rear and front axles. Another term for this is mid-ship.-Benefits:The mid-engine layout is typically chosen for its relatively favorable weight distribution...

 to aid its weight balance.

The Diablo came better equipped than the Countach had; standard features included fully adjustable seats and steering wheel, electric windows, an Alpine
Alpine Electronics
is traditionally known as an aftermarket car audio and navigation systems manufacturer, famed for their high quality, premium in-car audio units commonly known as headunits. It is a subsidiary of Alps Electric Co. and its registered head office is in Tokyo, Japan. However its main offices, or the...

 stereo system, and power steering. Anti-lock brakes
Anti-lock braking system
An anti-lock braking system is a safety system that allows the wheels on a motor vehicle to continue interacting tractively with the road surface as directed by driver steering inputs while braking, preventing the wheels from locking up and therefore avoiding skidding.An ABS generally offers...

 were not initially available, although they would eventually be used. A few options were available, including a custom-molded driver's seat, remote CD changer and subwoofer
Subwoofer
A subwoofer is a woofer, or a complete loudspeaker, which is dedicated to the reproduction of low-pitched audio frequencies known as the "bass". The typical frequency range for a subwoofer is about 20–200 Hz for consumer products, below 100 Hz for professional live sound, and below...

, rear spoiler
Spoiler (automotive)
A spoiler is an automotive aerodynamic device whose intended design function is to 'spoil' unfavorable air movement across a body of a vehicle in motion. Spoilers on the front of a vehicle are often called air dams, because in addition to directing air flow they also reduce the amount of air...

, factory fitted luggage set (priced at $2,600) and an exclusive Breguet
Breguet (watch)
Breguet is a manufacturer of luxury watches, founded by Abraham-Louis Breguet in Paris in 1775. Currently part of The Swatch Group, its timepieces are now produced in the Vallée de Joux in Switzerland...

 clock for the dash (priced at $10,500).

The Diablo was the fastest production car in the world for the 1991 model year, having a top speed of 333 km/h (207 mph), which exceeded the 324 km/h (201 mph) of the previous title-holder, the Ferrari F40
Ferrari F40
The Ferrari F40 is a mid-engine, rear-wheel drive, two-door coupé sports car produced by Ferrari from 1987 to 1992 as the successor to the Ferrari 288 GTO. From 1987 to 1989 it was Ferrari's fastest, most powerful, and most expensive car...

. The Diablo held the title until the release of the Bugatti EB110
Bugatti EB110
The Bugatti EB110 is a mid-engine sports car from Bugatti Automobili SpA. It was unveiled on September 15, 1991, in both Versailles and in front of the Grande Arche at La Défense in Paris, France, exactly 110 years after Ettore Bugatti's birth....

 in 1991, which claimed a top speed of 343 km/h (213 mph).

Diablo VT

The Diablo VT was introduced in 1993. Although the VT differed from the standard Diablo in a number of ways, by far the most notable change was the addition of all wheel drive
Four-wheel drive
Four-wheel drive, 4WD, or 4×4 is a four-wheeled vehicle with a drivetrain that allows all four wheels to receive torque from the engine simultaneously...

, which made use of a viscous
Viscous coupling unit
A viscous coupling is a mechanical device which transfers torque and rotation by the medium of a viscous fluid. It is made of a number of circular plates with tabs or perforations, fitted very close to each other in a sealed drum. Alternate plates are connected to a driving shaft at one end of the...

 center differential (a remodified version of LM002
Lamborghini LM002
The Lamborghini LM002 is an SUV that was built by the Lamborghini automobile company between 1986 and 1993. The LM002 was an unusual departure for Lamborghini which, at the time, was primarily known for high-performance grand tourers and sports cars...

's 4WD system). This provided the new nomenclature for the car (VT stands for viscous traction). The new drivetrain could direct up to 25% of the torque to the front wheels to aid traction during rear wheel slip
Wheelspin
A wheelspin, occurs when the force delivered to the tire tread exceeds that of available tread-to-surface friction and one or more tires lose traction.Standard differentials always apply equal torque to each wheel...

, thus significantly improving the handling characteristics of the car.

Other improvements debuting on the VT included front air intakes below the driving lamps to improve brake cooling, larger intakes in the rear arches, a more ergonomic interior with a revised dashboard, electronically adjustable dampers
Shock absorber
A shock absorber is a mechanical device designed to smooth out or damp shock impulse, and dissipate kinetic energy. It is a type of dashpot.-Nomenclature:...

, four-piston brake calipers, power steering, and minor engine refinements. Many of these improvements, save the four-wheel drive system, soon transferred to the base Diablo, making the cars visually nearly identical.

Diablo SE30 and SE30 Jota

The Diablo SE30 was introduced in 1994 as a limited-production special model to commemorate the company's 30th anniversary. The car was designed largely as a street-legal race vehicle that was lighter and more powerful than the standard Diablo. The engine received a healthy boost to 525 PS by means of a tuned fuel system, freer-flowing exhaust, and magnesium intake manifolds. The car remained rear-wheel drive to save weight, and omitted the electrically adjustable shock absorbers of the VT model, but it was equipped with adjustable-stiffness anti-roll bars
Sway bar
A sway bar or anti-roll bar or stabilizer bar is a part of an automobile suspension that helps reduce the roll of a vehicle that is induced by cornering or road irregularities. It connects opposite wheels together through short lever arms linked by a torsion spring...

 which could be controlled from the interior, on the fly.

The car's weight was lowered by replacing the power glass side windows with fixed plexiglas (with a small sliding vent window as on many race cars) and removing luxury features such as the air conditioning, stereo, and power steering. Carbon fiber seats with 4-point race harnesses and a fire suppression system added to the race nature of the vehicle.

On the outside, the SE30 differed from other Diablo models with a revised front fascia featuring straked brake cooling ducts and a deeper spoiler, while the rear cooling ducts were changed to a vertical body-colored design. The raging bull emblem was moved from the front of the luggage lid to the nose panel of the car between the front indicators. The engine lid had slats covering the narrow rear window, while a larger spoiler was installed as standard equipment. The single rear fog lamp and rear backup lamp, which had been on either side of the rear grille, were moved into the bumper; this change would be applied to all Diablo models across the lineup. Completing the exterior variations were special magnesium alloy wheels, SE30 badging, and a new metallic purple paint color (this could be changed upon request).

Only 150 SE30 models were built, and of these, about 15 were converted to "Jota" specification (although 28 Jota kits were produced). The "Jota" was a factory modification kit designed to convert the race-oriented SE30 into an actual circuit racer, albeit at the cost of street-legal operation. A revised engine lid with two ducts protruding above the roofline forced air into the intake system; a similar lid design would later be used on the Diablo SV model. With even more tuning of the Diablo's venerable V12 engine, the Jota kit produced nearly 595 PS and 639 newton metre of torque. An open exhaust system produced deafening engine roar, one of the main contributing factors to the Jota's track-only status, although some owners converted back to standard exhaust in order to enjoy their "super Diablo" on the road. The rear-view mirror from the interior was also removed because it was completely useless in conjunction with the revised engine lid, further adding to the race feeling of the car.

Diablo SV

The Diablo SV was introduced in 1995 at the Geneva Auto Show, reviving the super veloce title first used on the Miura SV. The SV was based on the standard Diablo and thus lacked the four-wheel drive of the VT. A notable feature of the SV was an increase in horsepower to 510 PS, which, paired with the two-wheel drive layout, could increase the likelihood of loss of traction during hard driving. Interestingly, despite its higher power output, the SV was priced as the entry-level model in the Diablo range, falling below the standard Diablo by a small margin. An adjustable rear spoiler was installed as standard equipment and could be color-matched to the car body or formed from carbon fiber. Other exterior changes included black tail lamp surrounds, repositioned rear fog and reverse lamps as on the SE30, dual front foglamps (rather than the quad style found on all previous models), an extra set of front brake cooling ducts, a ducted engine lid similar to that installed on the Diablo SE30 Jota, and optional "SV" decals for the sides of the car. The SV also featured larger diameter front brakes (340 mm (13.4 in)) and a corresponding increase in front wheel size to 18 inches.

In 1998, a limited 20-car run of Diablo SV's was produced exclusively for the United States market and called the Monterey Edition. The most notable feature of this edition was the use of the SE30/VT Roadster style of air intakes in front of the rear wheels, unlike the traditional (and persisting) SV style. Several of the cars were painted in unusual, vibrant colors. One Monterey Edition, featuring an upgraded engine and brakes, was driven by Mario Andretti
Mario Andretti
Mario Gabriele Andretti is a retired Italian American world champion racing driver, one of the most successful Americans in the history of the sport. He is one of only two drivers to win races in Formula One, IndyCar, World Sportscar Championship and NASCAR...

 during the Lamborghini-sponsored "Running of the Bulls" event in California. The Monterey Edition was foreseen to be a collectible, but due to the popularity of the fixed-lamp models to follow (see below), its value did not rise significantly over time.

Diablo VT Roadster

The Diablo VT Roadster was introduced in 1995 and featured an electrically operated carbon fiber
Carbon fiber
Carbon fiber, alternatively graphite fiber, carbon graphite or CF, is a material consisting of fibers about 5–10 μm in diameter and composed mostly of carbon atoms. The carbon atoms are bonded together in crystals that are more or less aligned parallel to the long axis of the fiber...

 targa top
Targa top
Targa top, targa for short, is a semi-convertible car body style with a removable roof section and a full width roll bar behind the seats. The term was first used on the 1966 Porsche 911 Targa, and it remains a registered trademark of Porsche AG....

 which was stored above the engine lid when not in use. Besides the roof, the roadster's body was altered from the fixed-top VT model in a number of ways. The front bumper was revised, replacing the quad rectangular driving lamps with two rectangular and two round units. The brake cooling ducts were moved inboard of the driving lamps and changed to a straked design, while the rear ducts featured the vertical painted design seen on the SE30. The engine lid was changed substantially in order to vent properly when the roof panel was covering it. The roadster also featured revised 17 inch wheels.

Specifications

Specification level Production Engine Maximum power Maximum torque Drive Layout Brakes Curb weight
Curb weight
Curb weight or kerb weight is the total weight of a vehicle with standard equipment, all necessary operating consumables , a full tank of fuel, while not loaded with either passengers or cargo.This definition may differ from definitions used by governmental regulatory agencies or other...

Weight distribution
Diablo 1990–1998, ~900 built 5.7 litre V12 492 PS 580 newton metre Rear mid-engine, rear-wheel drive Brembo
Brembo
Brembo S.p.A. is a manufacturer of automotive brake systems, especially for high-performance cars and motorcycles. It was established in Bergamo, Italy in 1961. Soon after the company was formed, it specialised in disc brakes, which were exclusively imported from the United Kingdom at the time...

 servo-assisted four-wheel disc brakes, 330 mm (13 in) front × 284 mm (11.2 in) rear
1576 kg (3,474.5 lb) 41/59% front/rear
VT 1993–1998, ~400 built Rear mid-engine, four-wheel drive
Four-wheel drive
Four-wheel drive, 4WD, or 4×4 is a four-wheeled vehicle with a drivetrain that allows all four wheels to receive torque from the engine simultaneously...

, 45% LSD
Limited slip differential
A limited slip differential is a type of differential gear arrangement that allows for some difference in angular velocity of the output shafts, but imposes a mechanical bound on the disparity...

 rear & 25% LSD front
Brembo
Brembo
Brembo S.p.A. is a manufacturer of automotive brake systems, especially for high-performance cars and motorcycles. It was established in Bergamo, Italy in 1961. Soon after the company was formed, it specialised in disc brakes, which were exclusively imported from the United Kingdom at the time...

 servo-assisted four-wheel disc brakes, 330 mm (13 in) front × 310 mm (12.2 in) rear
1625 kg (3,582.5 lb) 43/57% front/rear
SE30 1994, 150 built (25 for US market) 525 PS Rear mid-engine, rear-wheel drive 1451 kg (3,198.9 lb) 41/59% front/rear
SE30 Jota 1995, 28 kits built 595 PS 639 newton metre 1450 kg (3,196.7 lb)
SV 1995–1998 510 PS 580 newton metre Brembo
Brembo
Brembo S.p.A. is a manufacturer of automotive brake systems, especially for high-performance cars and motorcycles. It was established in Bergamo, Italy in 1961. Soon after the company was formed, it specialised in disc brakes, which were exclusively imported from the United Kingdom at the time...

 servo-assisted four-wheel disc brakes, 340 mm (13.4 in) front × 310 mm (12.2 in) rear
1576 kg (3,474.5 lb) 41/59% front/rear
VT Roadster 1995–1998, ~200 built 492 PS Rear mid-engine, four-wheel drive
Four-wheel drive
Four-wheel drive, 4WD, or 4×4 is a four-wheeled vehicle with a drivetrain that allows all four wheels to receive torque from the engine simultaneously...

, 45% LSD
Limited slip differential
A limited slip differential is a type of differential gear arrangement that allows for some difference in angular velocity of the output shafts, but imposes a mechanical bound on the disparity...

 rear & 25% LSD front
Brembo
Brembo
Brembo S.p.A. is a manufacturer of automotive brake systems, especially for high-performance cars and motorcycles. It was established in Bergamo, Italy in 1961. Soon after the company was formed, it specialised in disc brakes, which were exclusively imported from the United Kingdom at the time...

 servo-assisted four-wheel disc brakes, 330 mm (13 in) front × 310 mm (12.2 in) rear
1625 kg (3,582.5 lb) 47/53% front/rear


Diablo SV (1999)

Lamborghini launched a facelifted Diablo in 1999, simplifying the model range by eliminating the "base" Diablo (since the SV model had become the new entry-level trim anyway) and applying universal revisions across the lineup. The most immediately noticeable exterior change was the replacement of the previous Diablo's pop-up headlamp units with fixed composite lenses, borrowed under license from their original application in the Nissan 300ZX Z32
Nissan 300ZX
The Z31 chassis designation was first introduced in 1983 as a 1984 Nissan/Datsun 300ZX in the US only. The 300ZX, as its predecessors, was known as a Nissan in other parts of the world. This continued in the US until 1985 model year when Nissan standardized their brand name worldwide and dropped...

. All Diablos were also fitted with new 18 inch wheels.

The Diablo range also received an updated interior. Instead of the traditional flat dashboard with a separate upright instrument binnacle, as in many Italian sports cars of the era (and the previous Diablo), the new dash was an integrated wave-shaped design. A thin strip of black glass ran the length of the dash and contained various instrument indicator and warning lamps. This aesthetic design was inspired by Bang & Olufsen
Bang & Olufsen
Bang & Olufsen is a Danish company that designs and manufactures audio products, television sets and telephones. It was founded in 1925 by Peter Bang and Svend Olufsen, whose first significant product was a radio that worked with alternating current, when most radios were run from batteries...

 Hi-Fi products.

Under the engine lid, the tried-and-true V12 was bumped to 530 PS and 605 newton metre of torque for both the SV and VT models and now featured variable valve timing
Variable valve timing
In internal combustion engines, variable valve timing , also known as Variable valve actuation , is a generalized term used to describe any mechanism or method that can alter the shape or timing of a valve lift event within an internal combustion engine...

. For the first time ever in a Lamborghini, the Diablo was equipped with a Kelsey-Hayes ABS
Anti-lock braking system
An anti-lock braking system is a safety system that allows the wheels on a motor vehicle to continue interacting tractively with the road surface as directed by driver steering inputs while braking, preventing the wheels from locking up and therefore avoiding skidding.An ABS generally offers...

 unit, complementing larger diameter brake rotors.

Diablo VT and VT Roadster (1999)

The second generation VT coupé and roadster received the same cosmetic and mechanical upgrades as the SV model, including the open headlamps, restyled interior, 537 PS engine, and ABS; little else was changed from the previous generation. All US-spec VT models, coupé and roadster alike, shared the same unique front and rear fascias as seen on the original VT Roadster, along with the vertical painted rear brake ducts that had debuted on the SE30 model; these cosmetic variations were available as options on rest-of-world VT coupés.

A special run of twelve Diablo VT's was produced exclusively for the United States market in 1999 and called the Alpine Edition. As the Diablo had been utilizing Alpine
Alpine Electronics
is traditionally known as an aftermarket car audio and navigation systems manufacturer, famed for their high quality, premium in-car audio units commonly known as headunits. It is a subsidiary of Alps Electric Co. and its registered head office is in Tokyo, Japan. However its main offices, or the...

 stereo equipment since its inception, this very limited production was intended to showcase and celebrate the Lamborghini/Alpine connection. The Alpine Edition was a fairly standard Diablo VT with no engine modifications and some extra bits of carbon fiber
Carbon fiber
Carbon fiber, alternatively graphite fiber, carbon graphite or CF, is a material consisting of fibers about 5–10 μm in diameter and composed mostly of carbon atoms. The carbon atoms are bonded together in crystals that are more or less aligned parallel to the long axis of the fiber...

 trim in various locations, but the big news was the multimedia system. The stereo receiver was the top-end CVA-1005 model, with integrated navigation system; also included in the package was a DVD player, 6-disc CD changer, and Alpine's top quality tweeters, midrange drivers, and subwoofers, powered by "Lamborghini" badged Alpine amplifiers. Alpine logos adorned the seat headrests, floormats, and the special car cover included with this rare model.

Another special twelve-car run of Diablos for the US market consisted of VT Roadsters and was called the Momo Edition. Like the Alpine Edition, the Momo Edition catered to the US car buyer's interest in aftermarket upgrade products. Lamborghini, rather than spending money to develop certain automotive components, had been using aftermarket suppliers such as Alpine and MOMO
MOMO (company)
MOMO Srl is a design company headquartered in Milan, Italy that makes accessories and parts for automobiles.- Company history :MOMO was founded by gentleman racer Giampiero Moretti in the 1960s. MOMO are the initials for Moretti-Monza. Monza is a region in the Province of Milan.In 1969 MOMO opened...

 to outfit the Diablo. The Momo Edition was again a fairly standard VT Roadster, but featured special upholstery, MOMO 4-point seatbelt harnesses, and MOMO chromed wheels. Like the Alpine Edition, the Momo Edition also had MOMO logos embroidered in the seat headrests and floor mats.

The VT Roadster enjoyed one final limited run of 30 cars for the 2000 model year, after the introduction of the Diablo VT 6.0 (see below). This "Millennium Roadster" model was available in just two colors, Titanium Metallic and yellow, with the 10 cars exported to the United States all finished in Titanium Metallic. Besides an optional carbon fiber spoiler, special two-tone leather interior, and the shorter-ratio SV rear differential (providing enhanced acceleration), this model featured no significant changes from the previous design, and merely served as a final tribute to the outgoing roadster.

Diablo GT

The Diablo SE30 and its optional Jota upgrade kit had been quite sporty and race-oriented, but Lamborghini took this concept a step further in 1999 with its introduction of the very limited production Diablo GT, of which only 80 examples were produced for sale. The Diablo GT was a completely race-oriented model differing in nearly every aspect from the more mainstream Diablos. The cars were fitted with radically altered aggressive bodywork, a stripped-down interior, and an enlarged engine. With the exclusivity came a large price tag of nearly $
United States dollar
The United States dollar , also referred to as the American dollar, is the official currency of the United States of America. It is divided into 100 smaller units called cents or pennies....

300,000 and availability limited to Europe. Some GT models were imported into the US and a few may have been converted to road-legal US specification.

The Diablo GT was noticeably different on the exterior. While previous Diablo models had differed one from another with subtle fascia refinements or changes in the brake cooling ducts, the Diablo GT opted for an all new black carbon fiber front air dam with large brake ducts and a central vent for the oil cooler (the car still featured driving lamps, the single pair of round units featured on the Diablo VT Roadster). In the front luggage compartment lid, a large air extractor was added, while the small corner vents on the front fenders were changed to NACA style ducts. The fenders themselves were widened to accommodate a wider front track. In the rear, the bumper and its lamps were removed entirely, replaced by a carbon fiber diffuser that forced the fog and backup lamps into the outer pair of tail lamps, and shielded a pair of large center-mounted exhaust pipes. The engine lid featured a large central ram air duct protruding above the roof; a rear spoiler was standard equipment. This radical new body was composed mostly of carbon fiber, with the steel roof and aluminum doors being the only components to retain their standard material. Special 3-piece OZ wheels finished the GT's exterior package.

On the inside, the Diablo GT featured more prominent carbon fiber panels, race-spec bucket seats with 4-point seatbelt harnesses, a smaller steering wheel, and an optional Alpine
Alpine Electronics
is traditionally known as an aftermarket car audio and navigation systems manufacturer, famed for their high quality, premium in-car audio units commonly known as headunits. It is a subsidiary of Alps Electric Co. and its registered head office is in Tokyo, Japan. However its main offices, or the...

 LCD screen for GPS navigation and a bumper mounted backup camera
Backup camera
A backup camera is a special type of video camera that is produced specifically for the purpose of being attached to the rear of a vehicle to aid in backing up. Backup cameras are alternatively known as 'reversing cameras' or 'rear view cameras'....

. Despite the racing pretenses of the vehicle, air conditioning was still installed as standard equipment; airbags could be optionally omitted.

While previous Diablos had tuned and tweaked the 5.7 litre engine with various ignition and fuel system upgrades, the Diablo GT opted for a larger-displacement alternative. While the basic V12 block remained the same, the engine was stroked from 80 mm (3.1 in) to 84 mm (3.3 in) for a new displacement of 6 litre; this engine, which would later be used in the revised Diablo VT 6.0, produced (in GT trim) 575 PS and 630 newton metre of torque. The transmission was the same 5-speed used in other Diablos, but different gear ratios could be specified by the race-oriented buyer. Rear-wheel drive was used to save weight, as usual.

Diablo VT 6.0 and VT 6.0 SE

After Audi
Audi
Audi AG is a German automobile manufacturer, from supermini to crossover SUVs in various body styles and price ranges that are marketed under the Audi brand , positioned as the premium brand within the Volkswagen Group....

 AG took over Lamborghini from its former Southeast Asian owners, MyCom and V'Power, in 1998, they set out to modernize and refine the Diablo, while its replacement, the Murciélago
Lamborghini Murciélago
The Lamborghini Murciélago is a two-door, two-seat sports car produced by Italian automaker Lamborghini between 2001 and 2010. Successor to the Diablo and flagship of the automaker's lineup, the Murciélago was introduced as a coupé in 2001. The automaker's first new design in eleven years, the car...

, was developed. Audi tasked Luc Donckerwolke
Luc Donckerwolke
Luc Donckerwolke, is a Belgian car designer now Design Director of Volkswagen since 22 July 2011.-Background:...

 with designing a more refined, civilized, modern Diablo. The VT 6.0, released for sale for the 2000 model year, was the result of that design and featured significant styling changes both inside and out.

Externally, the Diablo VT 6.0 differed from its predecessors with a revised front fascia that featured two large air intakes (similar to those later used on the Murciélago). The air dam, nose panel, and fenders were all reworked and smoothed, the indicators were enlarged and shifted in position, and the small air inlets in the tops of the fenders were deleted. The rear of the car remained familiar, but the taillight surrounds were now body-colored (rather than transparent red or black) and the lamps themselves used the configuration seen on the limited Diablo GT. Unlike previous Diablos, which had almost all used 3-piece alloy wheels, the VT 6.0 rested on monobloc cast aluminum 18 inch OZ rims, which were styled with a 5-hole "phone dial" design similar to that seen on the later models of the Countach
Lamborghini Countach
The Lamborghini Countach is a mid-engined supercar that was produced by Italian automaker Lamborghini from 1974 to 1990. Its design both pioneered and popularized the wedge-shaped, sharply angled look popular in many high performance sports cars...

. On the inside, the interior was further refined in typical German fashion; the new-styled dash introduced on the 1999 Diablo range was retained, but a prominent carbon fiber center console was fitted, the air conditioning was improved, and the seat and pedal alignment was revised.

The VT 6.0, as per its name, also featured the new 6 liter V12 introduced in the Diablo GT (a stroker version of the traditional Diablo 5.7 liter V12). The motor had updated ECU
Electronic control unit
In automotive electronics, electronic control unit is a generic term for any embedded system that controls one or more of the electrical systems or subsystems in a motor vehicle....

 software in addition to new intake and exhaust
Exhaust system
An exhaust system is usually tubing used to guide reaction exhaust gases away from a controlled combustion inside an engine or stove. The entire system conveys burnt gases from the engine and includes one or more exhaust pipes...

 systems and a refined variable valve timing
Variable valve timing
In internal combustion engines, variable valve timing , also known as Variable valve actuation , is a generalized term used to describe any mechanism or method that can alter the shape or timing of a valve lift event within an internal combustion engine...

 system with slightly less aggressive camshaft
Camshaft
A camshaft is a shaft to which a cam is fastened or of which a cam forms an integral part.-History:An early cam was built into Hellenistic water-driven automata from the 3rd century BC. The camshaft was later described in Iraq by Al-Jazari in 1206. He employed it as part of his automata,...

s than had been used in the earlier versions. This powerplant produced 557 PS and 620 newton metre of torque, more than any prior standard Diablo.

Because of the preparations being made for the upcoming Murciélago
Lamborghini Murciélago
The Lamborghini Murciélago is a two-door, two-seat sports car produced by Italian automaker Lamborghini between 2001 and 2010. Successor to the Diablo and flagship of the automaker's lineup, the Murciélago was introduced as a coupé in 2001. The automaker's first new design in eleven years, the car...

, the Diablo VT coupé was the only available variant, with no more roadster or SV models planned; however, customers could specially order a rear-wheel drive version of the VT 6.0 if they so desired. Due to the influx of financial resources and engineering expertise from Audi, the Diablo 6.0 VT had superior build quality to the prior model years, making the 6.0 VT the most practical of all the Diablos.
Before the Diablo was retired, Lamborghini produced a limited 2001 model year 40-car production run of a special edition Diablo VT 6.0 SE. This model was only available in two colors; the gold metallic "Oro Elios" represented sunrise, while the color-shifting bronze/maroon "Marrone Eklipsis" represented sunset. Little else changed, save for a new magnesium intake manifold, special upholstery treatment, "Lamborghini" badged brake calipers, comprehensive road map software in the navigation system, and enhanced carbon fiber trim.

Specifications

Specification level Production Engine Maximum power Maximum torque Drive Layout Brakes Curb weight
Curb weight
Curb weight or kerb weight is the total weight of a vehicle with standard equipment, all necessary operating consumables , a full tank of fuel, while not loaded with either passengers or cargo.This definition may differ from definitions used by governmental regulatory agencies or other...

Weight distribution
SV 1998–1999, ~100 built 5.7 litre V12 530 PS 605 newton metre Rear mid-engine, rear-wheel drive Brembo
Brembo
Brembo S.p.A. is a manufacturer of automotive brake systems, especially for high-performance cars and motorcycles. It was established in Bergamo, Italy in 1961. Soon after the company was formed, it specialised in disc brakes, which were exclusively imported from the United Kingdom at the time...

 servo-assisted, ventilated, cross-drilled four-wheel disc brakes, 355 mm (14 in) front × 335 mm (13.2 in) rear, with Kelsey-Hayes ABS
Anti-lock braking system
An anti-lock braking system is a safety system that allows the wheels on a motor vehicle to continue interacting tractively with the road surface as directed by driver steering inputs while braking, preventing the wheels from locking up and therefore avoiding skidding.An ABS generally offers...

1530 kg (3,373.1 lb) 41/59% front/rear
VT 1998–2000 Rear mid-engine, four-wheel drive
Four-wheel drive
Four-wheel drive, 4WD, or 4×4 is a four-wheeled vehicle with a drivetrain that allows all four wheels to receive torque from the engine simultaneously...

, 45% LSD
Limited slip differential
A limited slip differential is a type of differential gear arrangement that allows for some difference in angular velocity of the output shafts, but imposes a mechanical bound on the disparity...

 rear & 25% LSD front (SV rear with 2.53:1 ratio used on Millennium Roadster)
Brembo
Brembo
Brembo S.p.A. is a manufacturer of automotive brake systems, especially for high-performance cars and motorcycles. It was established in Bergamo, Italy in 1961. Soon after the company was formed, it specialised in disc brakes, which were exclusively imported from the United Kingdom at the time...

 servo-assisted, ventilated, cross-drilled four-wheel disc brakes, 365 mm (14.4 in) front × 335 mm (13.2 in) rear, with Kelsey-Hayes ABS
1625 kg (3,582.5 lb) 43/57% front/rear
VT Roadster 1998–2000, 100 built + 30 Millenium Roadster Brembo
Brembo
Brembo S.p.A. is a manufacturer of automotive brake systems, especially for high-performance cars and motorcycles. It was established in Bergamo, Italy in 1961. Soon after the company was formed, it specialised in disc brakes, which were exclusively imported from the United Kingdom at the time...

 servo-assisted, ventilated, cross-drilled four-wheel disc brakes, 355 mm (14 in) front × 335 mm (13.2 in) rear, with Kelsey-Hayes ABS
GT 1999, 80 sold, 83 built 6 litre V12 575 PS 630 newton metre Rear mid-engine, rear-wheel drive Brembo
Brembo
Brembo S.p.A. is a manufacturer of automotive brake systems, especially for high-performance cars and motorcycles. It was established in Bergamo, Italy in 1961. Soon after the company was formed, it specialised in disc brakes, which were exclusively imported from the United Kingdom at the time...

 servo-assisted, ventilated, cross-drilled four-wheel disc brakes, 355 mm (14 in) front × 335 mm (13.2 in) rear, with Lucas ABS
1460 kg (3,218.7 lb) 40/60% front/rear
VT 6.0 2000-2001 (40 SE models built) 550 PS 620 newton metre Rear mid-engine, four-wheel drive
Four-wheel drive
Four-wheel drive, 4WD, or 4×4 is a four-wheeled vehicle with a drivetrain that allows all four wheels to receive torque from the engine simultaneously...

, 45% LSD
Limited slip differential
A limited slip differential is a type of differential gear arrangement that allows for some difference in angular velocity of the output shafts, but imposes a mechanical bound on the disparity...

 rear & 25% LSD front (rear-wheel drive optional)
Brembo
Brembo
Brembo S.p.A. is a manufacturer of automotive brake systems, especially for high-performance cars and motorcycles. It was established in Bergamo, Italy in 1961. Soon after the company was formed, it specialised in disc brakes, which were exclusively imported from the United Kingdom at the time...

 servo-assisted four-wheel disc brakes, 365 mm (14.4 in) front × 335 mm (13.2 in) rear, with Lucas ABS
1625 kg (3,582.5 lb) 41/59% front/rear


Diablo SV-R

Unveiled at the 1996 Geneva Salon, the Diablo SV-R is a lightweight competition version of the SV and the first Lamborghini to be officially built for motorsport purposes, as Ferruccio Lamborghini
Ferruccio Lamborghini
Ferruccio Elio Arturo Lamborghini was an Italian industrialist. Born to grape farmers from the comune of Renazzo di Cento in the Emilia-Romagna region, his mechanical know-how led him to enter the business of tractor manufacturing in 1948, when he founded Lamborghini Trattori, which quickly became...

 had never desired to build "street legal race cars" like rival Ferrari
Ferrari
Ferrari S.p.A. is an Italian sports car manufacturer based in Maranello, Italy. Founded by Enzo Ferrari in 1929, as Scuderia Ferrari, the company sponsored drivers and manufactured race cars before moving into production of street-legal vehicles as Ferrari S.p.A. in 1947...

. Rather than comply with the requirements for any established racing series, Lamborghini created its own Lamborghini Supertrophy which ran for four years (replaced later with the GTR Supertrophy for the Diablo GTR), with its inaugural round held as the support race to the 1996 24 Hours of Le Mans
1996 24 Hours of Le Mans
The 1996 24 Hours of Le Mans was the 64th Grand Prix of Endurance, and took place on June 15 and 16 1996.-Race:The 1996 race was won by a car that was considered by Porsche to not be a factory-backed entry, instead run by Joest Racing...

. The 28 Diablo SV-R's entered, which were built in 4 months on the Diablo assembly line along with production SV's, all finished this first event without significant problems.

The Diablo SV-R featured a stripped-down interior with a rollcage, racing seat, and removable steering wheel; the power glass side windows were replaced with fixed Plexiglass with traditional race-style sliding sections. On the exterior, the electric pop-up headlamps were replaced either with fixed units (similar to those which appeared later on the road cars in 1999) or with open ducting for the front brakes. A larger, deeper front spoiler was fitted, while the rear bumper was replaced with a diffuser assembly and the traditional Diablo "wing" was replaced with a true adjustable carbon fiber spoiler. Side skirts were added for aerodynamics, but this left so little ground clearance that pneumatic air jacks also had to be installed to raise the car for service in the pit lane; similar jacks can be seen in use on the more recent Ferrari F430 Challenge
Ferrari F430 Challenge
The Ferrari F430 Challenge is a production-based race car built by Ferrari. The car is directly based on the standard F430 and uses the same 4.3L V8 engine...

. Lightweight, hollow center-lock OZ wheels were used, although these were later switched to stronger Speedline units. Linear-rate springs were used with Koni shock absorbers and were adjusted to about twice the stiffness of stock Diablo SV suspension.
With all modifications, the SV-R weighed 1385 kg (3,053 lb), 191 kg (421 lb) less than the factory SV.

Under the engine lid, the traditional 5.7 liter V12 remained, but was boosted to 540 PS and 598 newton metre by means of a revised fuel system and variable valve timing
Variable valve timing
In internal combustion engines, variable valve timing , also known as Variable valve actuation , is a generalized term used to describe any mechanism or method that can alter the shape or timing of a valve lift event within an internal combustion engine...

, which would later appear on production Diablos. The engine was bolted up to a 6-speed manual transmission. Each car sold came with a season's factory support and an entry to the one-make series. All repairs and maintenance were carried out by Lamborghini themselves.

The series' first title winner was BPR regular, Thomas Bscher
Thomas Bscher
-External Links:*...

, who became involved with the business side of the brand in later years. In total, 31 examples of the SV-R were produced. Only a few of these have been modified for road use, including one in the United States which received a Diablo VT 6.0 front clip and was painted with the Stars and Stripes.

Diablo GTR

After campaigning the Diablo SV-R for four years in the Diablo Supertrophy, Lamborghini launched a completely new car for the 2000 season. Just as the SV-R was a race-ready SV, the Diablo GTR, introduced at the 1999 Bologna Motor Show
Bologna Motor Show
The Bologna Motor Show is an auto show held in Bologna, Italy, in December. It is recognized as an international show by the Organisation Internationale des Constructeurs d'Automobiles.- 2011 :...

, converted the already impressive Diablo GT into a track machine with power improvements, a stripped interior, and weight reduction.

The GTR interior was stripped down to save weight; the air conditioning, stereo, and sound and heatproofing were removed, and a single racing seat with 6-point seatbelt harness, MOMO
MOMO (company)
MOMO Srl is a design company headquartered in Milan, Italy that makes accessories and parts for automobiles.- Company history :MOMO was founded by gentleman racer Giampiero Moretti in the 1960s. MOMO are the initials for Moretti-Monza. Monza is a region in the Province of Milan.In 1969 MOMO opened...

 fire suppression system and steering wheel, complete integrated roll cage, fixed Plexiglass windows with sliding sections, and fresh air intake were fitted.

The GT had already featured a radically styled body, but the GTR took this a little further with features such as a very large rear spoiler bolted directly to the chassis like a true race car, 18 inch hollow magnesium Speedline centerlock wheels, pneumatic air jacks for raising the car in the pit lane (like the SV-R, it was too low for a rolling jack), and an emergency fuel shutoff switch on the left front fender.

The GTR utilized the same basic 6.0 liter V12 engine that had made its debut on the street-legal GT, but with revised fuel and ignition systems, individual throttle bodies, a dynamic air intake duct system, variable valve timing, titanium
Titanium
Titanium is a chemical element with the symbol Ti and atomic number 22. It has a low density and is a strong, lustrous, corrosion-resistant transition metal with a silver color....

 connecting rods, and a lightened crankshaft. These improvements allowed the engine to produce 590 PS and 640 newton metre of torque. The engine was bolted to the usual 5-speed transmission in a rear-wheel drive layout. Extra heat exhangers were added for the differential and transmission oil to prevent overheating under extreme racing conditions. A fast-filling racing fuel cell replaced the standard gasoline tank. The suspension was stiffened and lowered, and racing brake calipers were installed.

Thirty cars were planned, 32 were built, and 40 chassis were prepared to replace cars wrecked in racing accidents.

Diablo VTTT

The Lamborghini Diablo VTTT (viscous traction twin turbo) was an extremely limited production (~6) modification of the standard Diablo VT, offered as a special dealer upgrade by Platinum Motors, the Lamborghini dealership of southern California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

. The cars were equipped with twin blueprinted, water-cooled, Garrett
Garrett AiResearch
Garrett AiResearch was a manufacturer of turboprop engines and turbochargers, and a pioneer in numerous aerospace technologies. It was previously known as Aircraft Tool and Supply Company, Garrett Supply Company, AiResearch Manufacturing Company, or simply AiResearch...

 T4 turbochargers
Twin-turbo
Twin-turbo refers to a turbocharged engine, in which two turbochargers compress the intake charge. There are two commonly used twin turbo configurations: parallel twin-turbo and sequential twin-turbo...

 with electronically controlled wastegate
Wastegate
A wastegate is a valve that diverts exhaust gases away from the turbine wheel in a turbocharged engine system. Diversion of exhaust gases regulates the turbine speed, which in turn regulates the rotating speed of the compressor. The primary function of the wastegate is to regulate the maximum boost...

s, custom-built intercooler
Intercooler
An intercooler , or charge air cooler, is an air-to-air or air-to-liquid heat exchange device used on turbocharged and supercharged internal combustion engines to improve their volumetric efficiency by increasing intake air charge density through nearly isobaric cooling, which removes...

s, competition-type valves
Poppet valve
A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide...

 with race-type guides, cylinder head
Cylinder head
In an internal combustion engine, the cylinder head sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket...

s with polished ports
Cylinder head porting
Cylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve the quality and quantity of the air flow. Cylinder heads, as manufactured, are usually suboptimal due to design and manufacturing constraints...

, and a reprogrammed electronic fuel injection system. Modifications to the drivetrain included a custom Kevlar
Kevlar
Kevlar is the registered trademark for a para-aramid synthetic fiber, related to other aramids such as Nomex and Technora. Developed at DuPont in 1965, this high strength material was first commercially used in the early 1970s as a replacement for steel in racing tires...

 twin-plate clutch to cope with the extra torque and a new short ratio gearbox
Transmission (mechanics)
A machine consists of a power source and a power transmission system, which provides controlled application of the power. Merriam-Webster defines transmission as: an assembly of parts including the speed-changing gears and the propeller shaft by which the power is transmitted from an engine to a...

 to improve acceleration. The brakes were upgraded with cross-drilled, ventilated discs and carbon fiber
Carbon fiber
Carbon fiber, alternatively graphite fiber, carbon graphite or CF, is a material consisting of fibers about 5–10 μm in diameter and composed mostly of carbon atoms. The carbon atoms are bonded together in crystals that are more or less aligned parallel to the long axis of the fiber...

 brake pads. The VTTT featured a dash-mounted switch with three different engine settings including a very limited valet
Valet parking
Valet parking is a parking service offered by some restaurants, stores, and other businesses, particularly in North America. In contrast to "self-parking", where customers find a parking space on their own, customers' vehicles are parked for them by a person called a valet...

 mode and two levels of turbocharger boost (6 psi (0.41368543758 bar) and 9 psi (0.62052815637 bar)).

The extensive modifications to the VT commanded a high premium, nearly doubling the car's sticker price to $
United States dollar
The United States dollar , also referred to as the American dollar, is the official currency of the United States of America. It is divided into 100 smaller units called cents or pennies....

500,000.

With approximately 750 PS on tap at full turbo boost, the VTTT was able to achieve a top speed of nearly 255 mi/h, although no official number has been produced due to the car's rarity and the fact that it was not a production model.

Lamborghini Coatl Special

A very unusual, one-off Lamborghini Diablo variant called the Lamborghini Coatl appeared in 2000. It was produced not by the Lamborghini factory in Sant'Agata Bolognese
Sant'Agata Bolognese
Sant'Agata Bolognese is a small comune in the province of Bologna, Emilia-Romagna, central Italy. It is, above all, famous for hosting the headquarters of the automobile manufacturer Lamborghini. As of 2007 Sant'Agata Bolognese had an estimated population of 6,585.It is named after Saint Agatha....

, but rather by Automoviles Lamborghini Latinoamérica S.A., the Latin American Lamborghini distributor located in Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

. Nigel R. Gordon Stewart, the International Sales and Marketing director at Automobili Lamborghini S.p.A., and Robert A. Braner, president of Automobili Lamborghini USA, gave this company permission in 1995 to actually build Lamborghini automobiles in Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

 and some countries in Latin America.

The Coatl started out as an earnest project to create elaborate, personalized exotic automobiles, but after considerable development over the course of four years, only a single example was produced. Originally, the car was intended to be completely special-ordered by each buyer; the steering wheel, pedals, and seat would be custom molded, monogrammed initials could be engraved on the engine, and each paint job would be entirely unique. The single example of the Coatl did end up with a color-shifting 14-coat copper-like finish, to illustrate the elaborate measures that would be taken on each car.

The paint was not the only dramatic feature of the Coatl. The body was completely modified from the original Diablo, using components made of carbon fiber
Carbon fiber
Carbon fiber, alternatively graphite fiber, carbon graphite or CF, is a material consisting of fibers about 5–10 μm in diameter and composed mostly of carbon atoms. The carbon atoms are bonded together in crystals that are more or less aligned parallel to the long axis of the fiber...

 and a composite called "Epoxica." The rear bumper received major modification to a heavily curved design, and an early example of Altezza lights
Altezza lights
Altezza lights are vehicle tail lamp clusters consisting of one or more internal lamp units, covered with a clear acrylic cover made popular by Lexus...

 were installed in place of the normal Diablo units. The rear brake cooling ducts were extended vertically, nearly to the tops of the doors. The front of the car received fixed headlights, with a design not even close to what would be used on standard Diablos after 1999; the nose was also restyled with a heavily contoured air dam and a Ferrari F50
Ferrari F50
The Ferrari F50 is a mid-engined range-topping sports car made by Ferrari. The F50 was introduced in 1995 to celebrate the company's 50th anniversary. The car is a two door, two seat convertible with a removable hardtop...

-like hood with twin air extractors. A roof scoop, similar to that later used on the Diablo GT, was installed, along with a modification of the usual Diablo engine lid and rear spoiler. Interestingly, despite these considerable modifications, the wheels used were standard Diablo SE30 units.

In order to keep up with the exotic appearance of the body and interior, the Coatl's engine was also upgraded from the usual Diablo 5.7 liter unit. The engine was actually bored and stroked to 6.3 liters by McLaren
McLaren Automotive
McLaren Automotive, commonly referred to as McLaren, is a British automotive manufacturer of high-performance vehicles. The company was established as McLaren Cars in 1989 as a producer of road cars based on Formula One technology...

, who also helped to develop the chromium-molybdenum steel
41xx steel
41xx steel is a family of SAE steel grades, as specified by the Society of Automotive Engineers . Alloying elements include chromium and molybdenum, and as a result these materials are often referred to as chromoly steel or CRMO...

spaceframe chassis. With these modifications, the engine was able to produce 644 PS, which could push the Coatl from 0 to 100 km/h (62 mph) in 3.54 seconds, and on to 385 km/h (239 mph).

Lamborghini Alar

An later Lamborghini Latinoamérica prototype based on the Diablo was introduced in 2008, badged as the Lamborghini Alar.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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