BMW 7 Series (2020) is 828 mm (32.60 inch) longer, 122 mm (4.80 inch) wider, 34 mm (1.34 inch) higher and has 174 liters (6.14 ft3) bigger cargo space than Mercedes A-Class (2019).
Mercedes A-Class (2019) is 620 kg (1,367 lbs) lighter than BMW 7 Series (2020).