GMC Sierra 2500HD (2020) is 1069 mm (42.09 inch) longer, 222 mm (8.74 inch) wider, 511 mm (20.12 inch) higher and has 1187 liters (41.92 ft3) bigger cargo space than Opel Insignia Country Tourer (2017).
Opel Insignia Country Tourer (2017) is 1169 kg (2,577 lbs) lighter than GMC Sierra 2500HD (2020).