BMW 5 Series (2017) is 1209 mm (47.60 inch) longer, 183 mm (7.20 inch) wider, 110 mm (4.33 inch) higher and has 328 liters (11.58 ft3) bigger cargo space than MINI Roadster (2014).
MINI Roadster (2014) is 470 kg (1,036 lbs) lighter than BMW 5 Series (2017).