After extensive preparation and development, the BMW P65 V8 race engine finally heads to the dyno for a full performance ...

The all-new BMW F70 M135i heads to the dyno to find out exactly how much power it produces in standard factory form. With BMW ...

Few subjects create more argument in the performance world than dyno numbers, the stats that represent individual measurement of the horsepower and torque that a car or truck’s driven wheels put on ...

Sure, some all-electric hypercars may have snatched some attention away from the Bugatti Chiron but make no mistake, the ‘Bug is an absolute beast, as this video proves. We all know that the Chiron is ...

It's a story as old as hot rodding itself. It starts with the sales pitch-"Buy my widget and your engine will gain 50 hp"-and ends with a disappointed customer with a car that sure doesn't feel like ...