Dyno

Video: BMW M550i LCI gets tuned and dyno tested, shows real HP figures

Video: BMW M135i xDrive gets tested on the dyno

Video: BMW M135i xDrive gets tested on the dyno

It has become an accepted practice in the automotive industry for certain car makers to underestimate the power output of their products. BMW, Mercedes-Benz and Audi are among the biggest offenders, but is it really…

US Spec BMW Z4 M40i Posts 381 WHP on Dyno

US Spec BMW Z4 M40i Posts 381 WHP on Dyno

It’s not unusual for to understate the horsepower ratings of its cars. That’s been especially true since the turbocharged era kicked off and there’s no sign of things cooling down. That said, the new models…