Kia Optima (2015) is 324 mm (12.76 inch) longer, 264 mm (10.39 inch) higher and has 140 liters (4.94 ft3) bigger cargo space than McLaren 570GT (2017).
McLaren 570GT (2017) is 236 mm (9.29 inch) wider and 50 kg (110 lbs) lighter than Kia Optima (2015).