This being an AMG baby, the real explosion happens when you press the starter button. What an awesome sound that front-mounted V8 engine makes; distinct from anything Italian by virtue of a deep, metallic rumble that drums up into a thousand jackhammers thumping the ground as the revs rise. It sounds very mechanical, very precise and very expensive This is a serious car with serious performance: 563bhp, 479lb ft of torque, 0-62mph in 3.8 seconds and a limited top speed of 197mph. The acceleration is effortless: in any of the seven gears, at any speed, you get bucketloads of oomph. It's almost too seamless – you reach illegal speeds with no sense of occasion: you just arrive there.
In "controlled efficiency" mode, it's an easy cruise everywhere, with even some lag between gearchanges from the dual-clutch transmission to make drivers feel they're in a "normal car".
Switch to the "sport" or "sport plus" setting, however, and the gearchange times shorten, the engine growls and it's no longer a pretty gullwing but a serious sports car with its DTM-inspired carbon-fibre driveshaft, and lightweight all-aluminium chassis and body.