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 ...

We look at why Mazda introduced the three-rotor 20B Wankel rotary engine, and why it only ever saw service in the Cosmo coupe ...

Rotary engines tend to conjure images of a few famous sports cars, yet a surprising number of coupes, sedans, concepts, and even workhorses quietly packed spinning triangles under their hoods. By ...

The 1970s were full of strange automotive experiments, but few were as unlikely as a compact Japanese pickup powered by a screaming rotary engine. Mazda’s Rotary Engine Pickup, better known as the ...