GMC Sierra 3500HD (2015) is 1042 mm (41.02 inch) longer, 221 mm (8.70 inch) wider, 451 mm (17.76 inch) higher and has 1531 liters (54.07 ft3) bigger cargo space than Opel Astra (2017).
Opel Astra (2017) is 1298 kg (2,862 lbs) lighter than GMC Sierra 3500HD (2015).
