BMW 8 Series (G15) (2018) is 418 mm (16.46 inch) longer than Volvo XC40 (2017).
Volvo XC40 (2017) is 132 mm (5.20 inch) wider, 311 mm (12.24 inch) higher, 191 kg (421 lbs) lighter and has 40 liters (1.41 ft3) bigger cargo space than BMW 8 Series (G15) (2018).
