To estimate the price of the 2021 MG RX8 Luxury (Top) with 48500 km mileage in good condition, I first considered the selling prices of similar cars. A 2022 model with higher mileage (76000 km) and average condition sold for 45500 SAR on 22 Oct 2024. A 2020 model with similar condition but higher mileage (106442 km) sold for 42000 SAR on 21 Oct 2024. Another 2020 model with average condition and lower mileage (55083 km) sold for 57500 SAR on 3 Oct 2024. The 2022 model with average condition and 76000 km sold for 54500 SAR on 25 Sep 2024. The listed prices for 2021 models were 58000 SAR and 80000 SAR, but these were not sold prices. Considering the 2021 model's good condition and lower mileage compared to the 2022 model sold for 45500 SAR, I estimate a higher price. The 2020 model in good condition sold for 42000 SAR, but with much higher mileage. Balancing these factors, I estimate the market price for the 2021 model to be slightly higher than the 2022 model's selling price, reflecting its better condition and lower mileage.