FIAT 500 (2017) is 1664 kg (3,668 lbs) lighter than GMC Sierra 2500HD (2017).
GMC Sierra 2500HD (2017) is 2150 mm (84.65 inch) longer, 408 mm (16.06 inch) wider, 488 mm (19.21 inch) higher and has 1533 liters (54.14 ft3) bigger cargo space than FIAT 500 (2017).