An uncorroborated/unsourced
rumor coming from CAR claims that the next generation 6 Series (G15) and M6 will shed some massive weight.
All three 6 Series variants are reportedly going on a diet, with the coupe losing over 500 pounds, to approximately 3,450 pounds and the convertible also dropping 500 pounds to 3,750 pounds. Both models are claimed to be coming down in size as well. The Gran Coupe will also be getting lighter, despite growing in size with a longer wheelbase.
The weight reductions would be in large part owed to the advanced modular architecture which we've been referring to as 35up for the next generation 3-series,
5-series (G30) and larger models, and which has recently been renamed CLAR, which stands for cluster architecture. CLAR introduces a lightweight advanced material mix with some carbon fiber, high-strength steel, magnesium, titanium and aluminum alloys.
Along with xDrive AWD, CAR claims new 6 and 8 cylinder engines, with the 3.0L 6 cylinder turbo making 347 horsepower, the 4.4L V8 making 476 horsepowers and the M6's twin-turbo V8 hitting 600 horsepower.
That there are such specific weight and power figures revealed for a model not expected for a couple of years makes portions of the report somewhat dubious, but what we can safely expect is that the G15 generation of 6 Series will lose weight from the current models and that power and performance will be increased.