GMC Yukon XL (2020) is 864 mm (34.02 inch) longer, 185 mm (7.28 inch) wider, 420 mm (16.54 inch) higher and has 1732 liters (61.16 ft3) bigger cargo space than Kia Optima Sportswagon (2017).
Kia Optima Sportswagon (2017) is 991 kg (2,185 lbs) lighter than GMC Yukon XL (2020).