To estimate the price of the 2023 Geely Emgrand I4 1.5L GS (Base) with 18000 km mileage, I considered the following data points: 1) An offer accepted for a 2023 Geely Emgrand I4 1.5L GF (Top) with 1560 km at SAR 55500 on 2024-05-03. 2) Listed prices of similar cars: a 2024 Geely Emgrand I4 1.5L GS (Base) with 9600 km listed for SAR 44500, a 2024 Geely Emgrand I4 1.5L GF (Top) with 5000 km listed for SAR 59000, a 2023 Geely Emgrand I4 1.5L GF (Top) with 3000 km listed for SAR 58500, and a 2023 Geely Emgrand I4 1.5L GF (Top) with 1560 km listed for SAR 60500. The accepted offer of SAR 55500 for the GF variant suggests a lower value for the GS variant. The listed price of SAR 44500 for a 2024 GS variant with lower mileage (9600 km) indicates a slightly higher value for the 2023 model with higher mileage (18000 km). Considering the depreciation and the condition of the car, I adjusted the price accordingly.