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

When it comes to unique engine designs, one of the most prolific is the trusty rotary configuration. Instead of featuring a number of spherical cylinders moving up and down like in most internal ...

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

Designed and championed by self-taught engineer Felix Wankel, the rotary engine is now most closely associated with Japanese automaker Mazda. Many of the greatest Mazdas ever made, including the RX-7 ...

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, ...

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 ...

It was an era when General Motors threw itself into bold experiments in design, technology, and engineering. The company knew it had to reinvent itself, but just did not know which way to go. So it ...

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

LiquidPiston is testing a 10-kW generator it's prototyped for the US military, which it claims is just a quarter of the size and weight of the current model the Army uses. That means it'll be far ...

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

How does a mid-engine Corvette with a rotary powerplant sound to you? Two great tastes that could have gone great together – and that GM recently commended in a series it's been running called "Retro ...