GMC Yukon XL (2016) is 845 mm (33.27 inch) longer, 185 mm (7.28 inch) wider, 420 mm (16.54 inch) higher and has 1619 liters (57.17 ft3) bigger cargo space than Kia Optima Sportswagon (2015).
Kia Optima Sportswagon (2015) is 938 kg (2,068 lbs) lighter than GMC Yukon XL (2016).