To estimate the price of the 2015 Kia Optima 2.4L EX Mid Option EX (Base) with 115000 miles, I considered the following data points: 1) An offer accepted for a 2015 Kia Optima 2.4L I4 EX (Top) with 153500 miles at AED 18500 on 2023-09-14. This car has higher mileage and a higher trim, suggesting a slightly higher value. 2) A similar 2015 Kia Optima 2.4L EX Mid Option EX (Base) with the same mileage listed for AED 22000, which is likely higher than the actual selling price. 3) Other listings include a 2016 Kia Optima EX (Base) with 119000 miles listed for AED 26000, and a 2014 Kia Optima 2.4L I4 LX (Mid) with 143000 miles listed for AED 18000. Considering the accepted offer and the listed prices, I estimate the market price to be slightly lower than the listed AED 22000 but higher than the accepted offer of AED 18500.