GMC Yukon XL (2018) is 858 mm (33.78 inch) longer, 392 mm (15.43 inch) higher and has 1632 liters (57.63 ft3) bigger cargo space than Opel Insignia (2017).
Opel Insignia (2017) is 39 mm (1.54 inch) wider and 887 kg (1,955 lbs) lighter than GMC Yukon XL (2018).