GMC Sierra 3500HD (2016) is 858 mm (33.78 inch) longer, 453 mm (17.83 inch) higher and has 1451 liters (51.24 ft3) bigger cargo space than Opel Insignia (2020).
Opel Insignia (2020) is 49 mm (1.93 inch) wider and 1041 kg (2,295 lbs) lighter than GMC Sierra 3500HD (2016).
