Kia Optima Sportswagon (2015) is 225 mm (8.86 inch) longer and 75 mm (2.95 inch) wider than Nissan X-Trail (2020).
Nissan X-Trail (2020) is 300 mm (11.81 inch) higher, 50 kg (110 lbs) lighter and has 12 liters (0.42 ft3) bigger cargo space than Kia Optima Sportswagon (2015).