BMW 8 Series (G15) (2018) is 71 mm (2.80 inch) wider than Volvo S80 (2017).
Volvo S80 (2017) is 148 mm (5.83 inch) longer, 94 mm (3.70 inch) higher, 237 kg (522 lbs) lighter and has 60 liters (2.12 ft3) bigger cargo space than BMW 8 Series (G15) (2018).