FIAT 500L (2015) is 269 kg (593 lbs) lighter than GMC Sierra 2500HD (2015).
GMC Sierra 2500HD (2015) is 1936 mm (76.22 inch) longer, 261 mm (10.28 inch) wider, 323 mm (12.72 inch) higher and has 1315 liters (46.44 ft3) bigger cargo space than FIAT 500L (2015).