Ford Gyron was a two-wheeled gyrocar first shown in 1961 as a concept car. One wheel was at the front and the other at the rear like a motorcycle and the car was stabilized by gyroscopes. When the vehicle was stationary, two small legs appeared from the sides to support it.
The Phantom Corsair is an automobile prototype from 1938. It is a six-passenger coupe that was designed by Rust Heinz, a member of the H. J. Heinz family, and Maurice Schwartz of the Pasadena, California based Bohman & Schwartz coachbuilding company. The design was a departure from contemporary car design and it did away with many features, common at the time, that were eventually abandoned by mainstream designers.