Mercedes B-Class (2018) is 836 mm (32.91 inch) longer, 141 mm (5.55 inch) wider, 79 mm (3.11 inch) higher and has 273 liters (9.64 ft3) bigger cargo space than Seat Mii (2017).
Seat Mii (2017) is 364 kg (802 lbs) lighter than Mercedes B-Class (2018).
