The unveiling follows the launch earlier this year of the two-door M8, in both coupe and convertible versions, and now its four-door sibling has made its debut.
A combination of the 8-series Gran Coupe and the M8, the Gran Coupe features a 7.9-inch-longer wheelbase and an overall increase of 9.1 inches in external dimensions, with more room for rear-seat occupants.
Other than that, the M8 Gran Coupe is almost identical to the freshly launched coupe and cabriole, including most of the styling and the specifications.
It houses the same 4.4-litre twin-turbo V8 engine, like the regular M8 that produces 600 horsepower in the standard model, and 617 horsepower in the Competition version.
An eight-speed automatic gearbox sends the power to a rear-biased all-wheel-drive system which switches to only rear-wheel drive on selecting the drift mode.
According to BMW, the zero-to-60-mph time for the M8 stands at 3.1 seconds and 3 seconds flat for the M8 Competition – the same as the M8 coupe. BMW also claims that the Gran Coupe is just 100 pounds heavier than its two-door sibling.
The BMW M8 Gran Coupe is priced at $130,995, while the Competition variant has a price tag of $143,995.