FIAT 500L (2015) is 670 kg (1,477 lbs) lighter than GMC Sierra 1500 (2014).
GMC Sierra 1500 (2014) is 1074 mm (42.28 inch) longer, 248 mm (9.76 inch) wider, 202 mm (7.95 inch) higher and has 1316 liters (46.47 ft3) bigger cargo space than FIAT 500L (2015).