GMC Sierra 2500HD (2017) is 2002 mm (78.82 inch) longer, 315 mm (12.40 inch) wider, 492 mm (19.37 inch) higher and has 1331 liters (47.00 ft3) bigger cargo space than Opel Adam (2017).
Opel Adam (2017) is 1518 kg (3,347 lbs) lighter than GMC Sierra 2500HD (2017).
