The rotary engine was an unconventional design that delivered great power for its size. Here's what's good and bad about it.

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

Most car enthusiasts associate the term “rotary engine” with Felix Wankel’s invention, developed in the 1950s and most commonly associated with Mazda. However, more than half a century before the ...

Chris Bruce has worked in the automotive industry since 2011 and has written thousands of stories about cars, motorsports, and motorcycles in that time. He has written for Autoblog, Autoviva, CarFax, ...

Every story dealing with a new rotary engine from Mazda lands in a different place on the matrix of possibilities between “Coming soon!” and “Never gonna happen!” In 2011 it was speculated that the ...

The fascinating history of Chevrolet's mid-engine prototype, the Aerovette, and its unique rotary engine powerplant.

The Wankel rotary engine is known for its troubled life in the mainstream automotive industry, its high power-to-weight ratio, and the intoxicating buzz it makes at full tilt. Popular with die-hard ...

Gone is the 1.3-liter 13B-MSP Renesis rotary engine that came with this car; In its place is a 3.6-liter LFX V6, the same as you’d find in a numer of GM cars.

In the early '90s, Mazda's rotary-powered RX-7 was the quintessential Japanese two-seat sports car. But then the Miata ...

There are a lot of strange automotive designs out there, but this defunct engine from the '70s may just be the weirdest one ...