GMC Sierra 2500HD (2014) is 1057 mm (41.61 inch) longer, 218 mm (8.58 inch) wider, 469 mm (18.46 inch) higher and has 1258 liters (44.43 ft3) bigger cargo space than Opel Astra (2014).
Opel Astra (2014) is 1513 kg (3,336 lbs) lighter than GMC Sierra 2500HD (2014).
