Maserati Quattroporte (2019) is 717 mm (28.23 inch) longer, 9 mm (0.35 inch) wider, 192 mm (7.56 inch) higher and has 180 liters (6.36 ft3) bigger cargo space than Mercedes AMG GT (2014).
Mercedes AMG GT (2014) is 215 kg (474 lbs) lighter than Maserati Quattroporte (2019).