I started by examining the selling prices of similar cars. The most relevant data point is the 2022 Geely Tugella I4 2.0L Turbocharged GF Luxury (Top) with 51700 km sold for 78000 SAR on 2023-11-25. Another similar car with 68000 km sold for 75000 SAR on 2024-05-24. These prices are close to the car in question, which has 51500 km. The listed prices show a range from 63000 to 80000 SAR for similar variants, with the most relevant being 73000 SAR for a car with 42000 km and 78000 SAR for a car with 41000 km. Considering the selling prices and the listed prices, the market price for the car in question is likely around 76000 SAR, balancing between the slightly higher mileage and the average condition.