GMC Sierra 3500HD (2018) is 1041 mm (40.98 inch) longer, 221 mm (8.70 inch) wider, 477 mm (18.78 inch) higher and has 1531 liters (54.07 ft3) bigger cargo space than Opel Astra (2015).
Opel Astra (2015) is 1310 kg (2,888 lbs) lighter than GMC Sierra 3500HD (2018).
