BMW 8 Series (G16) (2020) is 244 mm (9.61 inch) longer and 56 mm (2.20 inch) wider than Volvo XC70 (2017).
Volvo XC70 (2017) is 197 mm (7.76 inch) higher, 233 kg (514 lbs) lighter and has 135 liters (4.77 ft3) bigger cargo space than BMW 8 Series (G16) (2020).