The Ford Crestline Skyliner was an automobile featuring a 2 door hardtop

Hardtop

A hardtop is a term for a rigid, rather than canvas, automobile roof. It has been used in several contexts: detachable hardtops, retractable hardtop roofs, and the so-called pillarless hardtop body style....

 body style with an integrated acrylic glass

Acrylic glass

Poly is a transparent thermoplastic, often used as a light or shatter-resistant alternative to glass. It is sometimes called acrylic glass. Chemically, it is the synthetic polymer of methyl methacrylate...

 panel over the front seating area. Part of the 1954 American Ford range, it boasted a "freshness of view" through the green-tinted panel. 13,144 were sold in the single year of production, more than the two years of Crown Victoria Skyliner

Ford Crown Victoria Skyliner

Ford's 1954 Crestline Skyliner was replaced in 1955 by the Fairlane Crown Victoria Skyliner, based on the new 1955 Ford design. It shared the flashy chrome "basket handle" which stretched the B-pillar across the roof of the 1955 Crown Victoria model but added a smoked acrylic glass window over the...

 production that would follow.

Mercury

Mercury (automobile)

Mercury was an automobile marque of the Ford Motor Company launched in 1938 by Edsel Ford, son of Henry Ford, to market entry-level luxury cars slotted between Ford-branded regular models and Lincoln-branded luxury vehicles, similar to General Motors' Buick brand, and Chrysler's namesake brand...

's Monterey

Mercury Monterey

The Monterey was introduced in 1950 as a high-end two-door coupe in the same vein as the Ford Crestliner, the Lincoln Lido coupe and the Lincoln Cosmopolitan Capri coupe. The reason was to offer a more luxurious coupe as the FoMoCo still not had any hard top. The Mercury line got a styling redesign...

Sun Valley was similar. 9,761 were built in 1954.