The internal combustion engine, for all its mechanical sophistication, still runs on a 19th-century mechanical idea: pistons rising and falling, a crankshaft spinning, a steam-age architecture ...

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, ...

Wankel engines first saw use in production cars as early as 1964 — and not even in a Mazda, but rather in an NSU. That little single-rotor powerplant quickly evolved into the more typical two-rotor ...

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

What's the first thought that comes to your mind when someone says Corvette? For some, it's a white Corvette C4 driven by Burt Reynolds as he drives off into the sunset in a glorious V8 symphony.

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