To estimate the price of the 2020 Geely Emgrand GS I4 1.8L Sports (Top) with 51000 km mileage, I first looked at the selling prices of similar cars. The 2018 models with higher mileage (99025 km and 73000 km) sold for SAR 30000 and SAR 29000 respectively in 2024. Given the 2020 model is newer and has lower mileage, it should be valued higher. The listed prices for 2018 models range from SAR 26000 to SAR 34500, but these are generally higher than actual selling prices. Considering the depreciation and the condition of the car, I adjusted the price upwards from the 2018 selling prices to account for the newer model year and lower mileage.