Maserati GranTurismo (2015) is 387 mm (15.24 inch) longer and 57 mm (2.24 inch) higher than Mercedes AMG GT (2020).
Mercedes AMG GT (2020) is 24 mm (0.94 inch) wider, 235 kg (518 lbs) lighter and has 89 liters (3.14 ft3) bigger cargo space than Maserati GranTurismo (2015).