FIAT 500L (2015) is 1598 kg (3,523 lbs) lighter than GMC Sierra 2500HD (2014).
GMC Sierra 2500HD (2014) is 1568 mm (61.73 inch) longer, 248 mm (9.76 inch) wider, 304 mm (11.97 inch) higher and has 1306 liters (46.12 ft3) bigger cargo space than FIAT 500L (2015).