First, I considered the selling price of a 2023 Mazda 6 I4 2.5L S (Base) with 20000 km sold for 81000 SAR in September 2024. The car to be estimated is a Core (Base+) variant with higher mileage (47000 km) and average condition, suggesting a lower value. Next, I looked at the new car price for the 2025 Mazda 6 2.5L Core at 97175 SAR. Applying a 15% depreciation for one year, the estimated value for a 2023 model would be around 82600 SAR. I also reviewed listed prices: one similar car with 51000 km was listed for 91500 SAR, and another with 52000 km was listed for 100000 SAR but delisted in June 2024, indicating it might not have sold at that price. A car with 39000 km was listed for 69000 SAR, and another with 65059 km was listed for 67500 SAR, delisted in August 2024. Considering these factors, the estimated market price is adjusted for the higher mileage and average condition of the car in question.