Ah, the Wankel. You magnificent, high-reving feat of unorthodox engineering. Your biggest champion, Mazda, may have left you – at least for the moment – but that doesn't mean some mad ...

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.

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 ...

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