Developed alongside the BMW 8 Series coupe as well as the M8 GTE racer, the Gran Coupe shares plenty of the primary specifications with the former and draws on the technical development of the latter.
While the engines available in the coupe are shared with the Gran Coupe – the turbocharged 3.0-litre petrol six in rear drive or xDrive AWD, a turbo diesel 3.0-litre six, and the twin-turbo 4.4-litre V8 in the M850i – the dimensions, weights and features provide the main points of difference between two and four-door 8 Series models.
The V8-powered M580i xDrive Gran Coupe, for example, still makes 390kW and 750Nm from 5500rpm and 1800rpm respectively, but weighs an extra 105kg, leaving it just five short of two tonnes.
That extra weigh comes in the form of more convenience, with 20-litres more luggage space, a wheelbase longer by 201mm and an overall length 231mm longer… and also two more doors.
Geneva 2018: BMW reveals M8 Gran Coupe Concept
If you need that extra rear seat space from your 8 Series, you’ll also be giving up two tenths on the sprint to 100km/h, which takes 3.9 seconds in the M850i Gran Coupe.
BMW says the Gran Coupe will launch internationally from September this year, though BMW Australia is yet to make an announcement specific to the local market.