Automakers spend millions building concept cars that can drive, steer and sometimes even pass basic safety tests, only to send them to the crusher once the auto show lights go dark. The practice looks ...

A 1963 GM concept car pushed design and performance so far ahead of its time that it was never approved for production.

Renault is cracking open the doors to its closely guarded heritage vault, not just to offer a rare glimpse but, more enticingly, the chance to actually buy a trove of concept cars, race machines, ...