FIAT 500 (2018) is 1829 kg (4,032 lbs) lighter than GMC Sierra 3500HD (2020).
GMC Sierra 3500HD (2020) is 2432 mm (95.75 inch) longer, 449 mm (17.68 inch) wider, 542 mm (21.34 inch) higher and has 1785 liters (63.04 ft3) bigger cargo space than FIAT 500 (2018).