Mazda’s keeping this hot-rodded roadster, the Spirit Racing Roadster 12R, for itself. Mazda’s keeping this hot-rodded roadster, the Spirit Racing Roadster 12R, for itself.

Motorsport is a hotbed of new technology, which is essential to its existence, but sometimes, don’t you just wish an unhinged group of fanatics would develop something that reminds you why you ...

The rotary engine may not have outsold piston propulsion, but it did beat all comers at Le Mans that one time.