The Rover Scarab was a convertible four seater intended to sell at £85, and had a V twin engine of only 839 cc, which was rear mounted. Despite the engine position, the Scarab had a conventional (dummy) radiator grill at the front. The other 1930s rear engined

Rear-engine design

In automobile design, a rear-engine design layout places the engine at the rear of the vehicle. The center of gravity of the engine itself is past the rear axle...

 cars all had a down-curved grill-less front. These included the Porsche Typ 12 prototype, the Mercedes-Benz 120 test car, and the subsequent 130 / 150 / 170 H

Rear-Engine Mercedes-Benz

From 1931 to 1939, Daimler-Benz AG produced three cars with rear engine as well as a few prototypes...

, the Tatra V570

Tatra V570

Tatra V570 was a prototype early 1930s car developed by a team led by Hans Ledwinka and Paul Jaray. The aim of the construction team was to develop cheap people's car with an aerodynamic body...

 prototype, T77

Tatra T77

The Czechoslovakian Tatra 77 is the first serial-produced truly aerodynamically designed automobile. It was developed by Hans Ledwinka and Paul Jaray, the noted Zeppelin aerodynamic engineer. Launched in 1934, the Tatra 77 is a coach-built automobile constructed on a central tube-steel chassis and...

, 77A

Tatra T77

The Czechoslovakian Tatra 77 is the first serial-produced truly aerodynamically designed automobile. It was developed by Hans Ledwinka and Paul Jaray, the noted Zeppelin aerodynamic engineer. Launched in 1934, the Tatra 77 is a coach-built automobile constructed on a central tube-steel chassis and...

, T87

Tatra T87

The Tatra 87 is a car built by Czechoslovak manufacturer Tatra. It was praised by German officers in World War II for the superior speed and handling it offered for use on the Autobahn. It was powered by a rear-mounted 2.9 litre air-cooled 90-degree overhead cam V8 engine that produced 85...

 and T97

Tatra T97

The Type 97 is a mid-class saloon car from Czechoslovak car-maker Tatra. It was produced for a short time in the pre-war period, from 1936 to 1939.- History :...

 and of course the KdF-Wagen (later better known as the Volkswagen Beetle

Volkswagen Beetle

The Volkswagen Type 1, widely known as the Volkswagen Beetle or Volkswagen Bug, is an economy car produced by the German auto maker Volkswagen from 1938 until 2003...

; see Volkswagen controversy). Only a few Scarabs were built, examples being shown at the London (Olympia) Motor Show and the Scottish Motor Show, both in 1931.