Kia Optima (2015) is 312 mm (12.28 inch) longer, 269 mm (10.59 inch) higher and has 307 liters (10.84 ft3) bigger cargo space than McLaren 720S (2019).
McLaren 720S (2019) is 199 mm (7.83 inch) wider and 78 kg (172 lbs) lighter than Kia Optima (2015).