Boat tail designs have long captivated car enthusiasts, with their sleek, tapered rear ends inspired by the shapes of boats. First seen...

Designed and built under the personal supervision of Bill Mitchell, the wild-looking XP-700 used many regular Corvette components, such...

Having inspired the legendary C2 ‘Sting Ray’ Corvette of 1963, the 1959 Corvette Stingray concept car was one of the forefathers of an...

The 1961 La Salle concept was also known as XP-715, following the General Motors custom of assigning 'experimental' cars XP numbers. The...

The Chevy Monza SS (XP-797) topless two-seat prototype was based on the Corvair rear-engine platform with a shortened 88-inch wheelbase....

The Chevrolet Corvair Monza GT (XP-777) was a mid-engined experimental prototype automobile built in 1962 based on the early model...

Based on a 1963 F-85 convertible, the Oldsmobile J-TR show car is little known today, but it bears the unmistakable stamp of GM styling...

The 1963 Buick Riviera Silver Arrow I Buick concept car was a production Riviera coupe specially customized by GM styling head William L....

The GM styling chief, Bill Mitchell, was in London on business when a vision inspired a car. The shapes and sounds of that brief...

The Mako Shark II concept car was originally built in 1965 under the direction of William (Bill) L. Mitchell, Vice President of GM...

The 1972 Silver Arrow III, Buick Riviera concept, was designed by Bill Mitchell and introduced at the 1972 Detroit Auto Show. Based on a...

Only Bill Mitchell could get away with this. Bill always managed to have a hot daily ride. Engineering prototypes that weren't...