FIAT 500L (2020) is 1510 kg (3,329 lbs) lighter than GMC Sierra 2500HD (2016).
GMC Sierra 2500HD (2016) is 1470 mm (57.87 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 (2020).