The BMW X4 xDrive30i is powered by a 2.0-litre inline-four turbocharged engine, delivering a maximum power of 245 PS and a peak torque of 350 Nm. For buyers considering the BMW X4, that matters because it affects how easy the car is to live with, whether for commuting, family use, long-distance driving or ownership costs. The useful way to read this is not as an isolated specification, but as a clue to how the car will feel in real daily use.