BMW piqued the interest of enthusiasts when it announced there would be a quad-turbo, four-wheel drive diesel version of the latest 5 Series. Now, however, it seems that the M550d won't be heading ...

The 40d nomenclature signifies the use of BMW’s excellent B57 3-litre diesel engine that in this instance is tuned to its highest output this side of the quad-turbo set-up found in the X5 M50d.

The combination of the TwinPower Turbo Diesel engine, 8-speed automatic transmission and the BMW EfficientDynamics program – including but not limited to Auto-Start Stop, Brake Energy ...

BMW did offer an M550d version of the previous generation F10 5-series, sharing the tri-turbo diesel engine that currently features in the X5/X6 M50d variants, but didn’t build it in right-hand ...

However, this isn’t the only high-performance diesel SUV on the market. The BMW X5 M50d Sport wears the hallowed M badge and produces a near-identical 375bhp from its three-stage turbo 3.0-litre ...

BMW has opted for the entry-level petrol and diesel powertrains. The X3 20 xDrive, which has a 2.0-litre turbo-petrol and a ...