Alfa Romeo Giulia (2018) is 1479 kg (3,261 lbs) lighter than GMC Sierra 2500HD (2016).
GMC Sierra 2500HD (2016) is 1056 mm (41.57 inch) longer, 162 mm (6.38 inch) wider, 540 mm (21.26 inch) higher and has 1268 liters (44.78 ft3) bigger cargo space than Alfa Romeo Giulia (2018).