Audi RS 7 (2020) is 434 mm (17.09 inch) longer, 119 mm (4.69 inch) higher and has 188 liters (6.64 ft3) bigger cargo space than Mercedes AMG GT (2015).
Mercedes AMG GT (2015) is 28 mm (1.10 inch) wider and 420 kg (926 lbs) lighter than Audi RS 7 (2020).