Whats the difference between a BMW x6 30d and 40d?
Next up in the range is the 40d, which is essentially the same engine but with a muscular 309bhp and a very useful 630Nm of torque (the 30d delivers 560Nm). How many turbos does X5 40d have? Straight six-cylinder diesel engine with multi-stage turbocharging and optimised direct fuel injection. The BMW TwinPower Turbo Technology featured […]