The Bugatti Chiron has a W16 engine that produces a stupendous 1,500 hp. One hot hatch, though, has more horsepower per liter than the Bugatti.

This piece covers the story of Mercedes-Benz's M133 and M139 four-cylinder engines, the latter of which remains the most power-dense four-cylinder engine ever produced. Mercedes-Benz Looked Toward ...

This engine, which takes over from the M133 that ran from 2013-2019, is hugely powerful for its size. It is a 4-cylinder, turbocharged inline engine, used in a range of current Mercedes-Benz or ...