FIAT 500 (2015) is 1978 kg (4,361 lbs) lighter than GMC Sierra 2500HD (2014).
GMC Sierra 2500HD (2014) is 2165 mm (85.24 inch) longer, 405 mm (15.94 inch) wider, 481 mm (18.94 inch) higher and has 1533 liters (54.14 ft3) bigger cargo space than FIAT 500 (2015).