BMW 5 Series Touring (2016) is 1439 mm (56.65 inch) longer, 255 mm (10.04 inch) wider, 79 mm (3.11 inch) higher and has 347 liters (12.25 ft3) bigger cargo space than Seat Mii (2017).
Seat Mii (2017) is 984 kg (2,169 lbs) lighter than BMW 5 Series Touring (2016).