To estimate the price of the 2021 Kia Sportage GDI I4 2.4L EX (Mid) with 28500 km mileage, I first considered the selling prices of similar cars. A 2022 Kia Sportage I4 2.4L EX (Mid) with 17000 km sold for 74500 SAR on 17 Oct 2024. A 2023 model with similar trim and 36500 km sold for 85000 SAR on 23 Oct 2024. These provide a range for newer models. The 2021 model's mileage is lower than the 2023 model but higher than the 2022 model. I also looked at listed prices: a 2021 Kia Sportage I4 1.6L EX (Mid) with 38000 km is listed for 82000 SAR, and a 2022 model with 35500 km is listed for 79000 SAR. Considering the selling prices and the listed prices, the 2021 model should be priced slightly lower than the 2023 model but higher than the 2022 model due to its age and mileage. The estimated market price is based on these comparisons.