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BMW has taken the wraps off its third body variant of the M6, with the four-door Gran Coupe joining the two-door Coupe and Convertible models in the line-up.

The M6 Gran Coupe wears a twin-turbo 4.4 litre V8 offering 560 hp at 5,000 to 6,000 rpm and 680 Nm at 1,500 to 5,750 rpm, paired to a seven-speed M DCT box with Drivelogic.

Performance specs include a 0-100 km/h time of 4.2 seconds on the way to an electronically-governed 250 km/h top speed, 305 km/h if the optional M Driver’s Package is specified.

The 1,950 kg offering is set to take on the likes of the Mercedes-Benz CLS63 AMG, and is suitably dressed for the task, with bespoke features including a carbon fibre-reinforced plastic (CFRP) roof.

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Other cues include large air intakes, adaptive LED headlights and an M kidney grille designed especially for the car. Widened front wheel arches, characteristic M gills and aerodynamically-optimised exterior mirrors are also to be found.

The rear gets a CFRP diffuser integrated into the rear apron, as well as double twin-exhaust tailpipes, and the M6 GC is shod with 20-inch M light-alloy wheels in a double-spoke design, wrapped with 265/35 and 295/30 profile rubbers.

Inside, there are M front sports seats with integral belt guides, with Merino leather upholstery throughout. A BMW Professional audio system comes as standard, with a Bang & Olufsen high-end surround system available as an option.

Plenty of ConnectedDrive features on hand too, such as an M-specific BMW Head-Up Display, Park Distance Control, a rear-view camera, High Beam Assistant, Speed Limit Info, Lane Change Warning, Lane Departure Warning, Surround View and BMW Night Vision with pedestrian recognition.