GMC Acadia (2020) is 554 mm (21.81 inch) longer, 65 mm (2.56 inch) wider, 555 mm (21.85 inch) higher and has 830 liters (29.31 ft3) bigger cargo space than Mercedes AMG GT (2019).
Mercedes AMG GT (2019) is 555 kg (1,224 lbs) lighter than GMC Acadia (2020).