GMC Sierra 2500HD (2014) is 873 mm (34.37 inch) longer, 471 mm (18.54 inch) higher and has 1178 liters (41.60 ft3) bigger cargo space than Opel Insignia (2017).
Opel Insignia (2017) is 52 mm (2.05 inch) wider and 1260 kg (2,778 lbs) lighter than GMC Sierra 2500HD (2014).
