Mercedes E-Class (2014) is 1322 mm (52.05 inch) longer, 209 mm (8.23 inch) wider and has 289 liters (10.21 ft3) bigger cargo space than Seat Mii (2020).
Seat Mii (2020) is 35 mm (1.38 inch) higher and 570 kg (1,257 lbs) lighter than Mercedes E-Class (2014).