Mercedes GLC-Class (2014) is 1099 mm (43.27 inch) longer, 245 mm (9.65 inch) wider, 181 mm (7.13 inch) higher and has 137 liters (4.84 ft3) bigger cargo space than Seat Mii (2014).
Seat Mii (2014) is 1069 kg (2,357 lbs) lighter than Mercedes GLC-Class (2014).