BMW 7 Series (2018) is 688 mm (27.09 inch) longer, 68 mm (2.68 inch) wider and has 79 liters (2.79 ft3) bigger cargo space than Mercedes GLA-Class (2020).
Mercedes GLA-Class (2020) is 133 mm (5.24 inch) higher and 297 kg (655 lbs) lighter than BMW 7 Series (2018).