FIAT 500L Trekking (2020) is 600 kg (1,323 lbs) lighter than GMC Sierra 1500 (2014).
GMC Sierra 1500 (2014) is 869 mm (34.21 inch) longer, 259 mm (10.20 inch) wider, 198 mm (7.80 inch) higher and has 1316 liters (46.47 ft3) bigger cargo space than FIAT 500L Trekking (2020).