The BMW S65 was an extremely popular engine that powered the M3 from 2007-2013. In that time, it won the International Engine and Powertrain of the Year Award for Best 3-liter to 4-liter Engine five ...
The BMW 3.0 N55 engine only came a few years later than the 3.0 N54, and both had much the same power output, so what are the differences between the two?