The rotary engine is easily one of the most controversial powertrains in the world of cars, and it's known for the brap-brap sound. Why do they do that?

How does a rotary engine work? Wankel Engines. Explanation of how a rotary engine works. With only 3 moving components, these are an engineering marvel. A look inside at what actually happens.

Wankel rotary engines, typically but not exclusively found in Mazdas, certainly lean on the "quirkier" side of modern powertrain systems, made quirkier because most rotary-powered cars on the road ...

While modern engines feature many tweaks and improvements on the original ideas, they usually aren't as interesting as the strange contraptions engineers experimented with in the early days. Take, for ...