1976 Chevrolet Aerovette
This mid-engine Corvette concept car was made in 1969 and reached the final iteration in 1976. It had a low drag shape and gull-wing doors. The Aerovette seemed like it was going to help Corvette go into supercar territory. Sadly, the concept did not get enough traction and was passed over for the normal front-engine layout. Corvette’s C3 generation, made around the same time, has been called the worst.
2011 Cadillac Ciel
The Ciel is what a Cadillac design should be like. It offers comfort, presence, luxury, and design. It was a huge 4-door convertible that made its debut at the Pebble Beach Concours in the hopes of showing their intentions of returning to their old luxury automaker status. Nothing in the lineup boasted of this much visual impact. The design, sadly, got watered down since the brand focused on mid-size sedan instead.