BMW 6 Series Gran Turismo (2020) is 817 mm (32.17 inch) longer, 106 mm (4.17 inch) wider and has 259 liters (9.15 ft3) bigger cargo space than FIAT 500X (2017).
FIAT 500X (2017) is 69 mm (2.72 inch) higher and 445 kg (981 lbs) lighter than BMW 6 Series Gran Turismo (2020).