To estimate the price of the 2022 MG RX8 I4 2.0L Turbo Charged Luxury (Top) with 21000 km mileage, I analyzed the selling prices of similar cars. The most relevant data points are: 1) A similar car with 18000 km sold for 74500 SAR on 2024-05-21. 2) Another with 10000 km sold for 81000 SAR on 2024-06-10. 3) A car with 66000 km sold for 72000 SAR on 2024-06-22. 4) A car with 20000 km sold for 60000 SAR on 2024-08-15. Considering the mileage and condition, the price should be closer to the 74500 SAR and 81000 SAR range. The listed prices also support this range, with a similar car listed for 88000 SAR. Adjusting for the actual selling prices and the car's mileage, the estimated market price is derived.