Maserati Quattroporte (2017) is 1000 mm (39.37 inch) longer, 132 mm (5.20 inch) wider, 22 mm (0.87 inch) higher and has 150 liters (5.30 ft3) bigger cargo space than Seat Leon (2014).
Seat Leon (2014) is 651 kg (1,435 lbs) lighter than Maserati Quattroporte (2017).