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, ...

"I really can't remember having any issues with this car." Yeah . . . when was the last time you heard someone with a Mazda RX-7 say that? Or better yet, someone with a rotary motor? It isn't any ...

Every once in a while, a revolutionary new design or concept takes the automotive industry by storm. In the 2020s, it's been electric vehicles, but just a few decades earlier, the rotary engine was ...

Almost as celebrated as the Toyota Supra, the Mazda RX-7 is one of Japan's most iconic sports cars. And perhaps the most legendary production car with a rotary engine. The RX-7 debuted in 1978 and ...

One of the most important factors of a true driver's car is the noise it makes. Most engine notes can be described by a growl or a hum. But the engine in the Mazda RX-7 sounds like a nest of angry ...

Find out how emissions regulations killed Mazda's three-rotor 20B Wankel rotary engine, just as it was getting started in the ...

How many rotors are too many? While most Mazda engine builders and tuners wouldn’t dare to build an engine with more than four rotors, a company out of New Zealand has built a six-rotor engine for the ...