BMW 6 Series Gran Turismo (2019) is 842 mm (33.15 inch) longer, 106 mm (4.17 inch) wider and has 259 liters (9.15 ft3) bigger cargo space than FIAT 500X (2016).
FIAT 500X (2016) is 61 mm (2.40 inch) higher and 400 kg (882 lbs) lighter than BMW 6 Series Gran Turismo (2019).