BMW 8 Series (G14) (2020) is 1100 mm (43.31 inch) longer, 218 mm (8.58 inch) wider and has 109 liters (3.85 ft3) bigger cargo space than MINI Roadster (2015).
MINI Roadster (2015) is 50 mm (1.97 inch) higher and 688 kg (1,517 lbs) lighter than BMW 8 Series (G14) (2020).