8. Chevrolet Monza GT and Monza SS Concepts

Back in the early `60s, the Corvair was a hot car due to its unique mechanical layout, turbocharged boxer engine, and cool looks. Despite the fact it didn’t have the performance which could threaten some sports cars, the Corvair still had potential. So Chevrolet decided to introduce a Monza GT and Monza SS to further explore the Corvair concept.

Those cars were fully functional prototypes of a new sports car based on the Corvair platform. The GT was a closed model with an innovative opening roof and SS was the roadster. Both models had two seats, lightweight bodies, fantastic design, and great driving dynamics. However, Chevrolet decided that it doesn’t need another sports car in its lineup and decided to kill the project.