12. Oldsmobile F-88
One of the most memorable ‘50s concepts is the Oldsmobile F-88, which they somehow managed to produce in just a few examples. In those days, they created concepts for promotional purposes, so after their life on show circuits, they destroyed them. But, somehow the Olds F-88 managed to survive.
Oldsmobile made two cars using a stretched Corvette chassis, their own 324 V8 engine, and a specially-designed, lightweight roadster body. Back in the day, Corvette had only six-cylinder motors, so a roadster with a V8 was a big deal. The plan was to build an Oldsmobile sports car. But when GM management realized it would jeopardize their Corvette sales, they canceled the project immediately.