BMW 7 Series (2017) is 688 mm (27.09 inch) longer, 68 mm (2.68 inch) wider and has 80 liters (2.83 ft3) bigger cargo space than Mercedes GLA-Class (2017).
Mercedes GLA-Class (2017) is 133 mm (5.24 inch) higher and 237 kg (522 lbs) lighter than BMW 7 Series (2017).