Rob Dahm has built this car from the ground up, and the billet aluminum rotary is now singing on the dyno.

David Mazzei has spent the last several years building a Superlite SL-C—a race- and street-legal component-car monster—powered by a custom-built, five-rotor peripheral-port engine fed by a massive ...

Over-the-top rotary builds are an enthusiast tradition. Because so few rotary cars have been made, the limits of the engine type haven't been fully exploited by automakers. It's been tuners who have ...

Rotary engines might not be everyone's cup of tea, but they hold a special place in our hearts. They're quirky and unique, and sound unlike any piston engine. This six-rotor RX-7 is a great example of ...

Can a single rotor Miata exist without shaking itself apart? Can a single rotor Miata be even more fun to drive than its ...

See firsthand how Flis Performance tears apart a four-rotor racing engine to get it ready for the track again.

For more than a decade the name Wankel has popped up whenever car enthusiasts start talking about advanced-design automotive powerplants. The theory of the Wankel engine goes back to 1954 when Dr.

Mazda’s rotary engine is coming back in the spotlight, but this time it’s not just a nostalgic callback to the RX-7 glory days. Instead, it’s quietly shaping the brand’s electrified future. Rather ...

Isaac Atienza is a Filipino motoring journalist who joined TopSpeed.com in 2021. He also owns a Filpino motoring website called Go Flat Out PH and is also a contributor to a local newspaper called The ...