Top 10: Totally bizarre engines fitted to aircraft ...

The internal combustion engine, for all its mechanical sophistication, still runs on a 19th-century mechanical idea: pistons ...

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 ...

Wankel rotary engine powered thousands of aircraft. One of several problems: It spewed castor oil on its pilots.

Launched in the late 1960s, the Ro 80 wasn't just the world's first mass-produced sedan with rotary power, but also one of the most innovative production vehicles of its era. Follow us: The rotary ...

The Willys Jeep diehards haven’t gone anywhere. They’re still out wheeling on slick rock and muddy trails, climbing stuff ...

Mazda says the Iconic SP concept was designed to be turned into a production car. The two-door sports car is powered by an extended-range powertrain. A two-rotor Wankel gas engine acts as a generator ...

Rob Dahm, notorious rotary-powered car builder, has firmly jumped into the deep end of the pool with his latest project: The world's only 15.7-liter, tri-turbo Y12 rotary engine. If that doesn't make ...