21: 1963 Chrysler Turbine
Jay Leno has a soft spot when it comes to the 1963 Chrysler Turbine, a car that’s as rare as it is unique. The Chrysler Turbine car was a unique project by the automaker to see if a car could be built that didn’t run on gasoline. The turbine-powered engine was noisy and the car is not as fast as you’d think (via Top Speed).

The application of building this car was not cost-effective nor practical. Chrysler would experiment with the car for a few years before scrapping the project. Leno said he always wanted one of these cars as a child. When he got the chance to own one, he jumped on it, and he owns an original orange model.