Think you know everything about rotary engines? Well have you ever heard of the bi-rotary engine that mixes pistons and ...

Mazda's rotary engine may not have survived were it not for the actions of this rebellious group. This is how the Mazda RX-8 came to life.

The challenge isn’t building a fast rotary car. It’s building one that ordinary people can afford without sacrificing what ...

Mazda made a splash in the market in 1990, launching the Eunos Cosmo with the three-rotor 20B engine. Compared with contemporary Wankel rotary engines, the 20B's extra rotor beefed the compact ...

In this video, I will try to use the correct proportion of two-stroke oil and gasoline to deal with the smoke problem. Did it ...

A former SEMA show car, this wild build is now up for auction on Bring a Trailer.

Working on a car can be a fun, relaxing activity, but there are some vehicles that really strain that philosophy. Here are some of the worst.

A new kind of internal combustion engine called REV Force with STLTC is being developed to be used in pretty much all ...

The INNengine e-Rex is tiny and can change compression ratios in the blink of an eye. But that's just the start of what makes it different from other engines.

Reliable sporty cars bridge the gap between weekend excitement and daily dependability. These machines offer mechanical ...

The 1970s strangled horsepower with emissions rules, fuel shocks, and insurance pressure—yet a handful of clever performance cars slipped through. Here are 11 machines once dismissed as weird or weak, ...