To estimate the price of the 2015 Mazda CX-9 V6 3.7L High+ Premium (Top) in good condition, I analyzed the listed prices of similar cars. The listed prices range from SAR 30,000 to SAR 56,000. The car with the closest mileage to the target car (221,729 km) is listed for SAR 46,500 with 232,000 km. Another similar car with 201,000 km is listed for SAR 47,500. Considering the target car's mileage and condition, I focused on listings between SAR 45,000 and SAR 47,500. The average of these relevant listings is approximately SAR 46,000. Given the car's good condition, I estimate the market price to be slightly above the lower end of this range.