To estimate the price of the 2019 Kia Sportage I4 2.0L LX (Base) with 66500 km mileage and average condition, I considered several data points. First, I looked at the selling prices of similar cars. The closest match is a 2019 Kia Sportage I4 2.0L EX (Mid) with 71500 km and good condition, sold for 61000 SAR on 2024-04-23. Adjusting for the lower trim and average condition, I estimate a reduction of around 5000 SAR. Another relevant data point is a 2019 Kia Sportage I4 2.0L EX (Mid) with 186000 km and average condition, sold for 49500 SAR on 2024-05-27. Given the lower mileage of the target car, I estimate an increase of around 10000 SAR. Additionally, a 2019 Kia Sportage I4 1.6L EX (Mid) with 66000 km and average condition sold for 72000 SAR on 2024-01-05, but considering the engine size and trim difference, I estimate a reduction of around 10000 SAR. Finally, the listed price of a similar 2019 Kia Sportage I4 2.0L LX (Base) with 66500 km is 62000 SAR, which is likely higher than the actual selling price. Considering all these factors, I estimate the market price to be around 56000 SAR.