All three of the current 6's body styles will be carried over for 2017, with the base 640i Coupe trimming over 500 pounds of body fat, to around 3,450 pounds. Even the droptop is getting some lipo, dropping from 4,255 to around 3,750 pounds. It's unclear how much the Gran Coupe will be lightened, as it will be the only member of the 6 Series family that's growing in size. BMW will stretch the wheelbase of its fullsize, four-door coupe, which should make it decidedly more sedan like.
The weight savings come thanks to a new modular architecture that promises a "more advanced material mix." That means carbon fiber, high-strength steel and aluminum elements, and even some titanium and magnesium bits.
Along with xDrive all-wheel drive, Car is promising new six- and eight-cylinder engines, with the 640i's 3.0-liter, turbocharged gas engine producing 347 horsepower while the diesel mill turns out 333. The 4.4-liter V8 of the 650i will deliver 476 ponies, while the range-topping M6's twin-turbo V8 will reach the magical 600-hp figure.
