GMC Yukon XL (2015) is 855 mm (33.66 inch) longer, 392 mm (15.43 inch) higher and has 1632 liters (57.63 ft3) bigger cargo space than Opel Insignia (2014).
Opel Insignia (2014) is 39 mm (1.54 inch) wider and 4029 kg (8,882 lbs) lighter than GMC Yukon XL (2015).