Mercedes SLK-Class (2014) is 27 mm (1.06 inch) longer and 29 mm (1.14 inch) wider than MINI Cooper Countryman (2015).
MINI Cooper Countryman (2015) is 259 mm (10.20 inch) higher, 115 kg (254 lbs) lighter and has 15 liters (0.53 ft3) bigger cargo space than Mercedes SLK-Class (2014).