381 HP. 740 NM. 6.3 L/100km fuel consumption (in the BMW M550d xDrive).
With the M Performance TwinPower Turbo straight 6-cylinder diesel engine, BMW has created an engine with sheer endless power on the one hand, but still extremely low fuel consumption and Co2 emissions on the other hand.
So to say: A monster without the bad habits. BMW EfficientDynamics