The most relevant data point is the selling price of a 2014 Ford Mustang V6 3.7L convertible with 136700 miles, which sold for SAR 47500 in August 2023. This car is similar in year and engine size but is a convertible, which typically has a higher value than a coupe. The car to be estimated is a coupe with higher mileage (149750 miles) and is in worse condition. The listed price for a similar 2014 Ford Mustang V6 3.6L EcoBoost coupe with 177000 miles was SAR 58000, but it was not sold, indicating the market price might be lower. Considering the selling price of the convertible and the higher mileage and worse condition of the target car, the estimated market price should be lower than SAR 47500. Adjusting for these factors, the estimated price is set at SAR 42000.