Kia Optima Sportswagon (2018) is 309 mm (12.17 inch) longer, 282 mm (11.10 inch) higher and has 245 liters (8.65 ft3) bigger cargo space than McLaren 675LT Coupe (2016).
McLaren 675LT Coupe (2016) is 235 mm (9.25 inch) wider and 468 kg (1,032 lbs) lighter than Kia Optima Sportswagon (2018).