Most engines are predictable… rotary engines are not. Building a Mazda rotary requires patience, confidence, and trust in the ...

Almost every internal combustion vehicle on the planet today uses the classic piston engine. These run by converting heat energy into reciprocating motion, and then rotary motion that ultimately ...

The tiny Mazda Autozam AZ-1 has long been a cult favorite for its dramatic gullwing doors and modest kei car performance, a visual promise its original three-cylinder engine could never quite keep.

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 ...