The mind-bending world of birotary engines - a hybrid of piston and rotary technology that could revolutionize aviation. But ...

The rotary engine, previously a staple in Mazda's lineup, is an engine design that foregoes the round piston and singular chamber of a regular reciprocal internal combustion engine. Instead, the ...

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 ...

Felix Wankel’s rotary engine design is best known for being the heart of Mazda’s beloved RX-series sports cars. Revered for its minuscule size, high power density, unique sound, smooth acceleration, ...

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 ...

Jon Wong was a reviews editor for CNET Cars. He test drove and wrote about new cars and oversaw coverage of automotive accessories and garage gear. In his spare time, he enjoys track days, caring for ...

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

Looking at all the incredible machines roaming our roads these days you’d be inclined to believe it can’t get better than this when it comes to the combustion engines they use. But if you ask a crew ...