Audi R8 (2018) is 83 mm (3.27 inch) wider and 171 kg (377 lbs) lighter than Kia Optima Sportswagon (2018).
Kia Optima Sportswagon (2018) is 429 mm (16.89 inch) longer, 230 mm (9.06 inch) higher and has 214 liters (7.56 ft3) bigger cargo space than Audi R8 (2018).