FIAT 500L (2017) is 1151 kg (2,538 lbs) lighter than GMC Sierra 2500HD (2017).
GMC Sierra 2500HD (2017) is 1471 mm (57.91 inch) longer, 262 mm (10.31 inch) wider, 307 mm (12.09 inch) higher and has 1520 liters (53.68 ft3) bigger cargo space than FIAT 500L (2017).