BMW 8 Series (G15) (2018) is 1293 mm (50.91 inch) longer, 275 mm (10.83 inch) wider and has 235 liters (8.30 ft3) bigger cargo space than FIAT 500 (2014).
FIAT 500 (2014) is 147 mm (5.79 inch) higher and 984 kg (2,169 lbs) lighter than BMW 8 Series (G15) (2018).