...and it looks alright, doesn't it? OK, it's not excitingly muscular in the way that the AMG C63 is, but it carries off the sensible-slacks-packing-heat motif rather nicely.
Eschewing the age-old no M car should ever be turbocharged adage by strapping a brace of turbos to the S63 engine (as used to embarrassing effect in the distinctly un-M-like X5M & X6M), it promises 552bhp, which is bloody loads. BMW also reckon it'll use 20% less fuel than the previous generation, but no M5 buyer will give the slightest toss about that. It'll pounce across Europe in a single bound, then shred its tyres on a whim. That's what it's for.