One of the first major automotive shows covered globally is the Tokyo Auto Salon, annually held in January. It serves as the ...

The rotary engine has been absent on the frontline for quite some time, and it's on the way back. But not with Mazda.

We look at why Mazda introduced the three-rotor 20B Wankel rotary engine, and why it only ever saw service in the Cosmo coupe ...

The Goda Bankin AZ-1 uses the venerable 13B rotary engine, which is famous for powering many Mazda RX-7s across several ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

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 ...

Once bound by kei car rules, this Mazda Autozam AZ-1 now breaks them all with a widebody and serious firepower ...

Most vehicles use a piston engine similar to the one-cylinder, four-stroke motor in the first car ever made, Karl Benz's Patent Motorwagen. Lately, a more fuel-efficient and emissions-friendly engine ...

An innovative new combustion engine eliminates half the guts of a traditional engine, and uses a fascinating internally rotating piston and sleeve arrangement, making it lighter, simpler and more ...

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 ...

The tiny Mazda Autozam AZ-1 has long been a cult favorite for its dramatic gullwing doors and modest kei car performance, a ...