Audi S7 (2020) is 156 mm (6.14 inch) longer, 83 mm (3.27 inch) wider and has 15 liters (0.53 ft3) bigger cargo space than BMW 3 Series Gran Turismo (2014).
BMW 3 Series Gran Turismo (2014) is 86 mm (3.39 inch) higher and 220 kg (485 lbs) lighter than Audi S7 (2020).