2017 BMW M6 Gran Coupe

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2017 BMW M6 Gran Coupe

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Is the 2017 BMW M6 Gran Coupe really a coupe? It has four doors, so it's definitely pushing envelope of the word. But, hey, it also has the word "Gran" too, and we haven't seen that since Ford canned the Gran Torino in 1976. So all is forgiven, what is this thing?

BMW's M Division — it used to be M for Motorsport, but now it could be M for awesoMe — has produced some of the greatest sports car and sport sedans of the last 40 years. And of all of those beastly speedsters, none has been more beloved than the M5 sedan. Think of the M6 Gran Coupe as everything you want in an M5, but with a rakish look and less headroom. Or you can think of it as the M6 coupe with a couple of extra doors. It's your choice.

Incidentally, with BMW introducing a new 5 Series for 2017, there's currently no M5 in the 2017 line. There may be a few leftover 2016 M5s on dealer lots, and it's likely an updated M5 will return for the 2018 model year.

The close relationship between the M5 and M6 Gran Coupe extends from the 560-horsepower, twin-turbocharged 4.4-liter V8 engine to the chassis components and the same 116.8-inch wheelbase. So the M6 Gran Coupe is at a fundamental level, a better-looking and even sexier version of the upright M5. If you like style, this four-door is densely packed with it.

With that in mind, the rear seat is severely compromised by the low-slung roofline. If you're going to use your high-powered BMW four-door for Uber or Lyft duty, go for the more comfortable M5. But if you can afford the M6 Gran Coupe, you're probably not scratching out a few extra bucks as a new-age cyber-cabbie.

And, after all, the M6 Gran Coupe is ever so slightly more practical than the regular M6 two-door. And that might be self-justification enough to buy it.

Still, all the M6 Gran Coupe glamour comes at a price. The M5 is about $23,000 cheaper to start before hitting the options list. And the Gran Coupe isn't significantly lighter in weight than the M5. This rocket ship weighs in well beyond 2 tons.

In a sure shock to absolutely no one, the M6 Gran Coupe is a first-order fuel slurper. Equipped with the seven-speed automatic transmission, it carries EPA-rated mileage ratings of 16 mpg combined (14 city/20 highway). Go for the six-speed manual transmission, and the numbers bump up to 17 mpg combined (15 city/22 highway). These happen to also be the same EPA ratings for the 2016 M5.

BMW doesn't build the M6 Gran Coupe for everyone. But if you're the right person for this provocative machine, use all the tools here on Edmunds to get the best deal from an outstanding dealer.