BMW 5 Series Gran Turismo (2015) is 1449 mm (57.05 inch) longer, 255 mm (10.04 inch) wider, 81 mm (3.19 inch) higher and has 287 liters (10.14 ft3) bigger cargo space than Seat Mii (2017).
Seat Mii (2017) is 1099 kg (2,423 lbs) lighter than BMW 5 Series Gran Turismo (2015).