You'd think measuring an engine's displacement would be simple, but there's a long history of trying to figure out how to ...

The rotary engine has been absent on the frontline for quite some time, and it's on the way back. But not with Mazda.

The Mazda MX-30 is still soldiering on like the Black Knight in Monty Python and the Holy Grail in the Japanese domestic ...

Once left behind due to high fuel consumption and fragile reliability, the rotary engine, long championed by Mazda, is making ...

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

Long before Felix Wankel became synonymous with rotary engines, an inventive Hungarian-American engineer named Stephen M. Balzer secured one of the earliest patents for a rotary-powered automobile on ...

Mazda's famous rotary engine finally made its big return last year, but it wasn't under the hood of a replacement for the RX-8. In fact, it wasn't even in a performance car at all. Instead, it served ...

The electric motor might carry the hype banner at the moment, but some minds remain convinced that there's plenty of innovation left to be extracted from internal combustion. AIE is one of the rotary ...

Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine both ...