Mercedes S-Class (2015) is 932 mm (36.69 inch) longer, 78 mm (3.07 inch) wider and has 50 liters (1.77 ft3) bigger cargo space than MINI Countryman (2017).
MINI Countryman (2017) is 67 mm (2.64 inch) higher and 648 kg (1,429 lbs) lighter than Mercedes S-Class (2015).