BMW X6 (2018) is 513 mm (20.20 inch) longer, 155 mm (6.10 inch) wider, 91 mm (3.58 inch) higher and has 145 liters (5.12 ft3) bigger cargo space than Mercedes GLA-Class (2018).
Mercedes GLA-Class (2018) is 517 kg (1,140 lbs) lighter than BMW X6 (2018).