Duntov laid out three design concepts that took decades to implement. The first was his proposal for the 1957 Q-Corvette. This design called for the following: an all-aluminum, fuel-injected small-block engine, four-wheel independent suspension, four-wheel disc brakes, and a transaxle. This design concept arrived in 1997 as the C5.
Besides a normal convertible model, the 1954 Chevrolet Corvette line-up also featured a hardtop, actually a Convertible Coupe. It was one of the Corvette based Motorama dream cars shown in 1954 and was a version fitted with a removable hardtop. The Advertising Brochure even called out the removable hardtop design.
Briggs Cunningham – A Man and His Dream The Early Days of Le Mans The 24 Hours of Le Mans...
Somewhere in the second part of 1959, project XP-720 begins at GM Styling, to design a production Corvette based on Bill Mitchell's Sting Ray racer. It would become known as the C2 or second generation Corvette. In October of that same year, a clay mock-up of project XP-720 is completed and put on display for General Motors' management viewing.
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