FIAT 500L (2017) is 1298 kg (2,862 lbs) lighter than GMC Sierra 2500HD (2019).
GMC Sierra 2500HD (2019) is 1471 mm (57.91 inch) longer, 262 mm (10.31 inch) wider, 307 mm (12.09 inch) higher and has 1529 liters (54.00 ft3) bigger cargo space than FIAT 500L (2017).