BMW X6 (2020) is 649 mm (25.55 inch) longer, 239 mm (9.41 inch) wider, 259 mm (10.20 inch) higher and has 239 liters (8.44 ft3) bigger cargo space than Mercedes A-Class (2017).
Mercedes A-Class (2017) is 1004 kg (2,213 lbs) lighter than BMW X6 (2020).