Audi TT RS (2014) is 426 kg (939 lbs) lighter than BMW 6 Series Gran Coupe (2017).
BMW 6 Series Gran Coupe (2017) is 810 mm (31.89 inch) longer, 53 mm (2.09 inch) wider, 37 mm (1.46 inch) higher and has 179 liters (6.32 ft3) bigger cargo space than Audi TT RS (2014).
