BMW 7 Series (2020) is 710 mm (27.95 inch) longer, 68 mm (2.68 inch) wider and has 80 liters (2.83 ft3) bigger cargo space than Mercedes GLA-Class (2020).
Mercedes GLA-Class (2020) is 144 mm (5.67 inch) higher and 452 kg (996 lbs) lighter than BMW 7 Series (2020).