Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

Typically, when we think of legacy brands that have employed the use of the Wankel rotary engine in the past, Mazda is virtually the only automaker that comes to mind. After all, the Japanese marque ...