Audi A3 Sportback (2018) is 137 mm (5.39 inch) higher, 390 kg (860 lbs) lighter and has 30 liters (1.06 ft3) bigger cargo space than Mercedes AMG GT (2017).
Mercedes AMG GT (2017) is 233 mm (9.17 inch) longer and 154 mm (6.06 inch) wider than Audi A3 Sportback (2018).
