BMW 8 Series (G14) (2018) is 474 mm (18.66 inch) longer, 100 mm (3.94 inch) wider and has 15 liters (0.53 ft3) bigger cargo space than Volvo V40 (2014).
Volvo V40 (2014) is 81 mm (3.19 inch) higher and 590 kg (1,301 lbs) lighter than BMW 8 Series (G14) (2018).