Last week, BMW surprised us with a teaser of a new concept car for the Geneva Motor Show, and today the wraps have finally come off the new BMW Concept M8 Gran Coupé. This confirms the existence of a four-door 8 Series Gran Coupé – which will arrive in 2019, replacing the 6 Series Gran Coupé – and also gives us our first look at the styling of the top dog, high-performance M8.

The slim laser-powered headlights, hexagonal four-eye lighting signature and massive trapezoidal kidney grille – joined together in the middle as on early BMW coupés – have been lifted from the Concept 8 Series, but the large, hyper-aggressive air intake design, made from carbon fibre, is all new.

Along the side, massive channels have been carved out the flanks, flowing from the Air Breather vents – now adorned with the M8 logo – positioned aft of the front wheels. The low-slung glasshouse tapers inward towards the rear, accentuating the muscular rear haunches. The rear carries a prominent integrated bootlid spoiler, thin three-dimensional L-shaped tail lights, a large diffuser and trademark M quad exhausts.

The concept is painted in Salève Vert, which transitions from green to greyish blue in certain lighting conditions. Meanwhile, the grille, window graphic, gills, brake callipers, wheels and tailpipes have all been coated in gold, which BMW says adds an air of exclusivity and contributes to a striking look. Unlike the Concept 8 Series, there’s no finished interior here to speak off.

No details about the mechanicals of the car just yet, but expect the M8 to feature the same 4.4 litre twin-turbocharged V8 from the M5, here making upwards of 600 hp. All those horses are likely sent to all four wheels via an M xDrive all-wheel drive system and an eight-speed M Steptronic automatic transmission.

So, this or the Mercedes-AMG GT 4-Door Coupé?