I analyzed the selling prices of similar cars first. The most relevant data points are: 1) A 2022 MG RX8 Luxury (Top) with 500 km sold for 91000 SAR on 2024-07-02, 2) A 2022 MG RX8 Luxury (Top) with 10000 km sold for 81000 SAR on 2024-06-10, 3) A 2022 MG RX8 Luxury (Top) with 18000 km sold for 74500 SAR on 2024-05-21, 4) A 2022 MG RX8 Luxury (Top) with 20000 km sold for 60000 SAR on 2024-08-15. The car in question has 5000 km, so its value should be between the 500 km and 10000 km cars. The listed prices of similar cars also provide context: 1) A 2022 MG RX8 Luxury (Top) with 4300 km was listed for 90000 SAR, 2) A 2022 MG RX8 Luxury (Top) with 859 km was listed for 93000 SAR, 3) A 2022 MG RX8 Luxury (Top) with 500 km was listed for 98000 SAR. Considering the selling prices and the listed prices, I estimate the market price of the car to be slightly lower than the highest selling price but higher than the lower end due to its low mileage.