Kia Optima Sportswagon (2017) is 343 mm (13.50 inch) longer, 267 mm (10.51 inch) higher and has 296 liters (10.45 ft3) bigger cargo space than McLaren 650S Coupe (2015).
McLaren 650S Coupe (2015) is 233 mm (9.17 inch) wider and 247 kg (545 lbs) lighter than Kia Optima Sportswagon (2017).