BMW 8 Series (G15) (2018) is 1005 mm (39.57 inch) longer, 175 mm (6.89 inch) wider and has 49 liters (1.73 ft3) bigger cargo space than MINI Hardtop 4 Door (2015).
MINI Hardtop 4 Door (2015) is 74 mm (2.91 inch) higher and 742 kg (1,636 lbs) lighter than BMW 8 Series (G15) (2018).