FIAT 500L Trekking (2020) is 1313 kg (2,895 lbs) lighter than GMC Sierra 3500HD (2015).
GMC Sierra 3500HD (2015) is 1348 mm (53.07 inch) longer, 262 mm (10.31 inch) wider, 282 mm (11.10 inch) higher and has 1579 liters (55.76 ft3) bigger cargo space than FIAT 500L Trekking (2020).