Changan’s R05E prototype achieves first ignition, signaling renewed interest in rotary engines but for a wilder application.

The rotary is kind of like the Rudy (from the movie “Rudy”) of engines. It’s a little smaller than the others, and might not be quite as good, but you can’t help rooting for it. Mazda says that you ...

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 ...

Over-the-top rotary builds are an enthusiast tradition. Because so few rotary cars have been made, the limits of the engine type haven't been fully exploited by automakers. It's been tuners who have ...

The traditional piston engine has garnered the vast majority of attention and application in the internal combustion age, but there was another: the Wankel rotary engine. German engineer Felix Wankel ...

Kennedy is not just another writer. Since the early 2000s, before televisions were a thing in every household, he enjoyed his dad's stories of the Safari Rally cars. He finally got a chance to attend ...

In theory, Wankel-style rotary internal combustion engines have many advantages: they ditch the cumbersome crankcase and piston design, replacing it with a simple, single-chamber design and a thick, ...

The rotary internal combustion engine made most famous by Japanese car maker Mazda is set to be reborn... in China.

What goes around comes around and around and around. Eleven years after discontinuing it, Mazda has brought back its signature rotary engine in an unusual way. It turned it into a range-extending ...