Kia Optima Sportswagon (2015) is 608 kg (1,340 lbs) lighter than Mercedes X-Class (2017).
Mercedes X-Class (2017) is 485 mm (19.09 inch) longer, 60 mm (2.36 inch) wider, 349 mm (13.74 inch) higher and has 607 liters (21.44 ft3) bigger cargo space than Kia Optima Sportswagon (2015).