BMW 8 Series (G14) (2019) is 1109 mm (43.66 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 678 kg (1,495 lbs) lighter than BMW 8 Series (G14) (2019).