[kacey]

https://www.topgear.com/car-news/fir...ime=1495023257

Each time you fire up the 4.4‑litre V8 - the same unit from the old model but reworked to bring a yet unknown power figure (one that’s probably in excess of the 592bhp M5 Competition Package and 603bhp E63) - the car defaults to 4WD via BMW’s XDrive system. However, we’re told this still allows for some slip as it’s rear-biased and only brings the front wheels into play when the rears can’t physically put any more power down to the road.

But if you want to get the car moving around, you hit the DSC switch which gives you the option of three modes: 4WD, 4WD Sport and 2WD. 4WD is all about maximum traction. 4WD Sport is geared towards fast track use. And 2WD is for all you hooligans out there who want to bonfire the rear tyres. Or, as BMW puts it, ‘the purists’.