FIAT 500L (2016) is 1460 kg (3,219 lbs) lighter than GMC Sierra 3500HD (2019).
GMC Sierra 3500HD (2019) is 1854 mm (72.99 inch) longer, 272 mm (10.71 inch) wider, 321 mm (12.64 inch) higher and has 1640 liters (57.92 ft3) bigger cargo space than FIAT 500L (2016).