BMW 5 Series Gran Turismo (2018) is 1209 mm (47.60 inch) longer, 183 mm (7.20 inch) wider, 79 mm (3.11 inch) higher and has 289 liters (10.21 ft3) bigger cargo space than MINI Roadster (2015).
MINI Roadster (2015) is 454 kg (1,001 lbs) lighter than BMW 5 Series Gran Turismo (2018).