Mercedes E-Class (2020) is 1145 mm (45.08 inch) longer, 387 mm (15.24 inch) wider, 9 mm (0.35 inch) higher and has 299 liters (10.56 ft3) bigger cargo space than MINI Roadster (2014).
MINI Roadster (2014) is 578 kg (1,274 lbs) lighter than Mercedes E-Class (2020).