Rather, it’s a fully-fledged M version of the new four-door coupe, spotted testing by one of our sleuth spy photographers on the Nurburgring, following up the last batch of photos from testing in Northern Europe.
Set for debut either very late this year or early next year, this M6 Gran Coupe is essentially a four-door version of the new M6 Coupe though with tuning differences for its slightly larger structure.
Clear signs that this is an M variant of the stunning 6-Series Gran Coupe are the quad-exhaust tips, aggressive bumpers, and upsized wheels and brakes.
2013 BMW M6 Gran Coupe spy shots
At any rate, the new M6 range is expected to use BMW's familiar seven-speed M DCT dual-clutch gearbox to route power to the rear wheels, allowing for 0-60 mph acceleration in the low-four-second range.
Unfortunately, we'll have to wait until early next year to see the M6 Gran Coupe on dealer lots. In the mean time, we can enjoy the M6 Coupe.