Audi A7 (2020) is 149 mm (5.87 inch) longer, 80 mm (3.15 inch) wider and has 15 liters (0.53 ft3) bigger cargo space than BMW 3 Series Gran Turismo (2018).
BMW 3 Series Gran Turismo (2018) is 88 mm (3.46 inch) higher and 210 kg (463 lbs) lighter than Audi A7 (2020).