Mercedes GLC-Class (2017) is 922 mm (36.30 inch) longer, 206 mm (8.11 inch) wider, 270 mm (10.63 inch) higher and has 109 liters (3.85 ft3) bigger cargo space than MINI Roadster (2015).
MINI Roadster (2015) is 855 kg (1,885 lbs) lighter than Mercedes GLC-Class (2017).