Felix Wankel, a German engineer, created the Wankel engine. Compared to the standard engine configuration, the Wankel engine ...

Back in the late ’80s and early ’90s, Mazda was pumping out four-rotor race cars for IMSA, Le Mans, and the Japanese Sports Prototype championship, among other races. One of the best of Mazda’s killer ...

Where do epic builds come from? We suspect (and we tend to know a lot of things) they come from one of two places: a company with large budgets or from the underdog enthusiast who spends every ...

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

Over-the-top rotary builds are an enthusiast tradition. Because so few rotary cars have been made, the limits of the engine type haven't been fully exploited by automakers. It's been tuners who have ...

All photos on this page are of the two-rotor.Wouldn't those headlights look better if the Feds would let them put a glass cover over the hole? Conventional gauges and controls hint this version may be ...

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

The rotary engine is not quite dead. Despite it last making a sports car experience in the Mazda RX-8 just under a decade ago, the oddball triangular engine has an unbelievably strong cult following ...