To estimate the price of the 2020 MG RX8 I4 2.0L Turbocharged Luxury (Top) with 55083 km mileage, I considered the following data points: 1) Selling prices of similar cars: A 2020 MG RX8 COM (Mid) with 50000 km sold for 68000 SAR on 2023-11-23, a 2020 MG RX8 COM (Mid) with 103000 km sold for 42500 SAR on 2023-12-02, a 2020 MG RX8 Black Edition (Top+) with 63512 km sold for 62500 SAR on 2024-02-11, a 2020 MG RX8 COM (Mid) with 83000 km sold for 52298 SAR on 2024-03-27, a 2020 MG RX8 Luxury (Top) with 76000 km sold for 52000 SAR on 2024-04-27, and a 2020 MG RX8 Luxury (Top) with 82000 km sold for 37000 SAR on 2024-09-06. 2) Listed prices: A 2020 MG RX8 Luxury (Top) with 39000 km was listed for 62000 SAR, a 2020 MG RX8 Luxury (Top) with 76000 km was listed for 52000 SAR, a 2020 MG RX8 Luxury (Top) with 82000 km was listed for 40000 SAR, and a 2020 MG RX8 Luxury (Top) with 101000 km was listed for 62500 SAR. Considering the car's mileage, condition, and variant, I estimated the market price based on the average of the most relevant data points, giving more weight to actual selling prices and adjusting for mileage and condition differences.