What is horsepower?
Horsepower is a measure of how much power an engine makes. Sometimes used interchangeably with brake horsepower, but now more often used to refer to metric horsepower, which are the same as PS.
Related glossary terms
PS - pferdestärkePS (pferdestärke) is the German word for metric horsepower. As a result, an engine's PS figure will be exactly the same as its metric horsepower (hp) number.RPMRPM (revolutions per minute) is a measure of how many times a thing spins around in one minute. For cars, this refers to how fast the engine is spinning.