BMW X6 (2016) is 492 mm (19.37 inch) longer, 185 mm (7.28 inch) wider, 208 mm (8.19 inch) higher and has 159 liters (5.62 ft3) bigger cargo space than Mercedes GLA-Class (2015).
Mercedes GLA-Class (2015) is 705 kg (1,554 lbs) lighter than BMW X6 (2016).