BMW 7 Series (2017) is 60 kg (132 lbs) lighter than Maserati Quattroporte (2018).
Maserati Quattroporte (2018) is 165 mm (6.50 inch) longer, 46 mm (1.81 inch) wider, 3 mm (0.12 inch) higher and has 15 liters (0.53 ft3) bigger cargo space than BMW 7 Series (2017).