I started by examining the selling price of a similar 2021 Mazda 6 2.0L S Grade (Base) with 45500 km sold for AED 58000 on 25 Aug 2023. This car has lower mileage than the target car, suggesting a slightly higher value. Next, I considered the dealer-sold prices: AED 55241.5 for a 2.5L S with 87938 km on 19 Jul 2024 and AED 59491.5 for a 2.5L S with 77868 km on 20 Nov 2023. These cars have higher engine capacity but similar or higher mileage, indicating a similar or slightly lower value for the target car. The accepted offer of AED 57000 for a 2.5L V Grade (Mid) with 53000 km on 26 Oct 2024 suggests a higher value due to the variant and lower mileage. Listed prices for 2.0L S Grade (Base) range from AED 57500 to AED 74990, with higher prices for lower mileage. Considering the target car's average condition and mileage of 74141 km, I estimated a price slightly below the lower end of the listed range and close to the selling prices, accounting for the higher mileage and average condition.