There are many different forms of internal combustion engines, but most use the same basic principle. Explosions in the combustion chamber move pistons up and down to spin a crankshaft. That ...

Jack Hubbell is a European based writer and automotive enthusiast who joined the HotCars team in 2024. Jack has been building cars and motorcycles since a young age and was a member of the SCCA from ...

Bruno joined TopSpeed in 2022 and now serves as Senior Editor for ICE, while also helping train writers across CarBuzz, HotCars, and TopSpeed. A lifelong car and motorcycle enthusiast, he enjoys ...

When the Mecum Monterey 2026 auction crosses the block this summer, two of the most historically significant Japanese-powered prototypes ever built will be offered back to back. Lots R21 and R22 are ...

Defined by its iconic design, balanced driving dynamics and signature rotary heart, the Mazda RX-7 stood as one of Japan's most ambitious sports cars. Over its three-generation lifespan, the RX-7 ...

Japanese automaker Mazda discontinued its trademark pistonless rotary engine in 2012. That's also when the RX-8 quad coupe was canned with no successor in sight. Everyone and their dog hoped that the ...

The world’s car companies’ great drive to Wankel-style rotary engines in the 1960s and early ‘70s was massive—and largely a dead end. NSU, the company that created the Wankel, won plaudits with its ...

Combination car nuts/Monty Python fanatics can't hear the words "Wankel rotary engine" without imagining John Cleese's pompous English accent turning it into a dirty phrase. For the power-lusting ...

In its standard form, the Mazda 13B Rotary engine has two rotors that make a distinct 'brap-brap' while at idle, and a 9,000 RPM scream on full tilt. It's a two-stroke dream of an engine with a cult ...