Two legendary German V8s go head-to-head: the Mercedes C63 AMG (W204) with its 6.2L M156 engine and the BMW M3 E92 with its ...

BMW has announced a range of powertrain updates ... Moving up to the twin-turbo 40d version of the same engine above, which is offered as the 740d, the X3 M40d, and X7 xDrive40d (all not currently ...