Kia Optima Sportswagon (2015) is 165 mm (6.50 inch) longer, 100 mm (3.94 inch) higher, 175 kg (386 lbs) lighter and has 238 liters (8.40 ft3) bigger cargo space than Nissan GT-R (2020).
Nissan GT-R (2020) is 35 mm (1.38 inch) wider than Kia Optima Sportswagon (2015).