Kia Optima Sportswagon (2017) is 443 kg (977 lbs) lighter than Mercedes X-Class (2018).
Mercedes X-Class (2018) is 485 mm (19.09 inch) longer, 60 mm (2.36 inch) wider, 349 mm (13.74 inch) higher and has 720 liters (25.43 ft3) bigger cargo space than Kia Optima Sportswagon (2017).