Last year, Koenigsegg announced that its Gemera's three-cylinder engine was dead because too many customers went for the V8 option, which will be of the so-called "hot vee" variety. What does that ...

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 ...