This “inside-out” approach to the Wankel rotary engine is a key differentiator. Traditional Wankel engines feature a triangular rotor in a peanut-shaped housing, which Alec identified as a sig ...

A simplified Wankel engine has only two moving parts: the rotor, and the eccentric shaft. CC-BY-SA-3.0 by Y_tambe via Wikimedia Common The rotor is a triangle shape, but the sides bow out.

Wankel engines first saw use in production cars as early as 1964 — and not even in a Mazda, but rather in an NSU. That little single-rotor powerplant quickly evolved into the more typical two ...

Mazda's Wankel rotary engine has always been unique in the automotive landscape as a mass-produced internal combustion engine that eschews such unsightly items as pistons, valves and camshafts.

Although there was briefly a company called Rotary Rocket, the term is much better known as a nickname for the Mazda RX-7 — one of the few cars that used a Wankel, or rotary, engine. If you ever ...

The only cars in recent times to utilise a Wankel rotary engine have been Mazdas – the RX-8 being the most recent. But the revolutionary engine has made an appearance in plenty of other vehicles ...