BMW X6 (2014) is 492 mm (19.37 inch) longer, 185 mm (7.28 inch) wider, 195 mm (7.68 inch) higher and has 159 liters (5.62 ft3) bigger cargo space than Mercedes GLA-Class (2014).
Mercedes GLA-Class (2014) is 945 kg (2,083 lbs) lighter than BMW X6 (2014).