To estimate the price of the 2020 MG ZS I4 1.5L LUX (Mid) with 63500 km mileage, I first considered the selling prices of similar cars. A 2020 MG ZS I4 1.5L with 116000 km, LUX (Mid) variant, sold for 34000 SAR on 2023-12-21. This car has higher mileage and is in average condition, suggesting a higher price for the target car. A 2021 MG ZS I4 1.5L LUX (Mid) with 77000 km sold for 37500 SAR on 2024-10-30, which is closer in mileage and condition. The listed prices for similar 2020 LUX (Mid) variants were 46000 SAR and 42000 SAR, but these are typically higher than selling prices. Considering the target car's good condition and mileage, I estimate its market price slightly higher than the 2021 model's selling price but lower than the listed prices.