I started by examining the selling price of a similar car: a 2022 Mazda CX-9 Turbocharged I4 2.5L High+ Premium (Top) with 60,000 km mileage, sold for SAR 120,000 on 7 Nov 2024. The car to be estimated has lower mileage (21,000 km) and is in good condition, which suggests a higher value. Next, I reviewed listed prices: a similar car with 18,000 km was listed for SAR 139,000, and another with 15,000 km for SAR 140,000. These listings, although higher, provide a ceiling for the price. Considering the lower mileage and good condition of the car to be estimated, I adjusted the price slightly above the selling price but below the highest listings, accounting for the typical negotiation margin in listings.