FIAT 500L (2015) is 1593 kg (3,512 lbs) lighter than GMC Sierra 3500HD (2019).
GMC Sierra 3500HD (2019) is 1936 mm (76.22 inch) longer, 261 mm (10.28 inch) wider, 325 mm (12.80 inch) higher and has 1426 liters (50.36 ft3) bigger cargo space than FIAT 500L (2015).