Car of the Year in 1968, the NSU Ro 80 was the world's first rotary-powered sedan, showcasing many advanced features that ...

Astron aerospace has shown a partial prototype of a new rotary combustion engine it claims runs at an extraordinary 60% thermal efficiency, burning totally clean with zero NOx emissions and nothing ...

Discover how Mazda’s 13B-MSP Renesis evolved, its tech breakthroughs, and the issues that defined it, plus how it connects to today’s new single-rotor 8C engine.

Mazda is developing two sports cars, including an RX-7 successor and next-gen MX-5. The rotary-powered model may debut next year with a range-extender hybrid powertrain. The upcoming MX-5 is still ...

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, ...

Almost every internal combustion vehicle on the planet today uses the classic piston engine. These run by converting heat energy into reciprocating motion, and then rotary motion that ultimately ...

Alina has been enthusiastic about vehicles her entire life, and even from an early age found herself itching to get behind the wheel. Through high school and college, she could be found reading ...

Michael Arsenaeu designed the Avadi engine 20 years ago in the hopes of creating an entirely new engine design to be efficient as well as reduce emissions. In 2015, Avadi began the build and ...

In a world dominated by pistons, the rotary engine was something different for motorists. It was the vision of German engineer Felix Wankel, built on the belief that the up-and-down motion of pistons ...