GMC Sierra 1500 (2020) is 379 mm (14.92 inch) longer, 369 mm (14.53 inch) higher and has 1188 liters (41.95 ft3) bigger cargo space than Opel Insignia (2015).
Opel Insignia (2015) is 52 mm (2.05 inch) wider and 332 kg (732 lbs) lighter than GMC Sierra 1500 (2020).
