FIAT 500 (2014) is 1050 kg (2,315 lbs) lighter than GMC Sierra 1500 (2017).
GMC Sierra 1500 (2017) is 1671 mm (65.79 inch) longer, 405 mm (15.94 inch) wider, 379 mm (14.92 inch) higher and has 1543 liters (54.49 ft3) bigger cargo space than FIAT 500 (2014).