Mercedes GLA-Class (2014) is 683 mm (26.89 inch) longer, 120 mm (4.72 inch) wider, 105 mm (4.13 inch) higher and has 180 liters (6.36 ft3) bigger cargo space than MINI Roadster (2015).
MINI Roadster (2015) is 150 kg (331 lbs) lighter than Mercedes GLA-Class (2014).