30 concept cars that never hit the mainstream

Plymouth XNR

Chrysler needed a way to compete with the Ford Falcon, so in 1960 the automaker developed the two-seater Plymouth XNR. But the vehicle never made it into production, and the singular concept car has been shipped to Italy, Kuwait, Lebanon, and Canada. It was sold at auction in 2012.

Frisky Family Three

Part of the peculiarly small British line of Medows Frisky cars, the three-wheeled vehicle debuted at the 1958 Earls Court Motor show and could be driven with a motorcycle license. Though the vehicle went into production in 1959, the company faced insolvency a few months later and only a handful were ever made.