FIAT 500L (2018) is 1465 kg (3,230 lbs) lighter than GMC Sierra 2500HD (2014).
GMC Sierra 2500HD (2014) is 1486 mm (58.50 inch) longer, 259 mm (10.20 inch) wider, 300 mm (11.81 inch) higher and has 1520 liters (53.68 ft3) bigger cargo space than FIAT 500L (2018).