BMW 7 Series (2019) 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 (2015).
Mercedes A-Class (2015) is 580 kg (1,279 lbs) lighter than BMW 7 Series (2019).