BMW 5 Series Gran Turismo (2017) is 636 mm (25.04 inch) longer, 102 mm (4.02 inch) wider, 99 mm (3.90 inch) higher and has 230 liters (8.12 ft3) bigger cargo space than Seat Leon (2020).
Seat Leon (2020) is 300 kg (661 lbs) lighter than BMW 5 Series Gran Turismo (2017).