Mercedes S-Class (2017) is 1138 mm (44.80 inch) longer, 111 mm (4.37 inch) wider and has 150 liters (5.30 ft3) bigger cargo space than MINI Cooper Countryman (2020).
MINI Cooper Countryman (2020) is 72 mm (2.83 inch) higher and 805 kg (1,775 lbs) lighter than Mercedes S-Class (2017).