Kia Optima 2015 Used Automatic Gasoline mileage: 660 KM or more For sale Optima, engine size 2400, the big engine. The engine was rebuilt with the previous owner and the transmission is imported. New tires, new rims, new battery. The car in general, its matters are good. I travel with it far and near and have not complained about it. It has 660 mileage.