BHP stands for brake horsepower, which is a unit of measurement used to describe the amount of power a cars engine produces after accounting for the frictional losses in power from the engine. In other words, BHP measures how much of the power generated by the engine is sent to the wheels, which makes the car accelerate. BHP is always less than a cars horsepower (HP), which is a measure of power produced by the engine. While horsepower measures the power generated by the engine, brake horsepower measures how much of the power produced by the engine is sent to the wheels.

BHP is a more realistic measurement of a cars power as it considers the power left over after the gearbox, alternator, and water pump are working, as well as any loss of power due to friction. HP or horsepower describes the total amount of power an engine can produce. PS or PferdStarke is the metric measure of horsepower, which is the equivalent of 98.6% of one HP.

In summary, BHP is a measure of the power produced by a cars engine that takes into account the power loss due to friction, while HP is a measure of the power produced by the engine.