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 ...

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, ...

When Mazda discontinued the RX-8, most people assumed the rotary engine was finished. The RX-8 was the last production car to use Mazda's signature Wankel rotary, and its departure seemed to signal ...

After years of rumors and experimentation behind closed doors, the Mazda rotary engine is officially back. The Vision X-Coupe, a plug-in hybrid concept showcased at the 2025 Japan Mobility Show, has ...

Forbes contributors publish independent expert analyses and insights. Peter Lyon is based in Tokyo and writes about the car industry. At the Japan Mobility Show two years ago, Mazda unveiled a ...

It's difficult to imagine that a company that started out as a cork manufacturer in 1920, would today be a successful automaker on a global level. According to Statista, Mazda sold around 407,000 ...

The Mazda RX-7 is the sports car that made the rotary engine cool. Like really, really cool. It powered the RX-7 for 24 years, bringing the revolutionary Wankel engine technology to the mass ...

Language is an imperfect medium, but it's what we've got, so let's go with it. Determining the swept volume of inventor Felix Wankel's rotary engine can generate more arguments than claiming what a GT ...

Sometimes we get fixated on things: songs, hobbies, or romantic interests. But that sometimes also happens in the automotive space – whether the real one or the fictional realm. If you want an ...