To estimate the price of the 2012 Ford Fusion I4 2.5L Standard with 148000 km mileage, I first looked at the actual selling prices of similar cars. The closest matches were: 1) A 2012 Ford Fusion I4 2.5L with 151000 km sold for SAR 16500 on 2024-01-28, 2) Another similar car with 151000 km sold for SAR 17000 on 2024-01-31, and 3) A car with 228000 km sold for SAR 14000 on 2023-11-03. These prices suggest a range of SAR 14000 to SAR 17000 for cars in average condition. Next, I reviewed listed prices for similar cars. The most relevant listings were: 1) A 2012 Ford Fusion I4 2.5L Standard with 148000 km listed for SAR 24000, 2) A 2012 Ford Fusion I4 2.5L SE with 118000 km listed for SAR 19000, and 3) A 2012 Ford Fusion I4 2.5L SE with 146000 km listed for SAR 20000. These listings are generally higher than the selling prices, indicating that the actual market value is lower. Considering the selling prices and the listed prices, I estimate the market price of the car to be around SAR 16000.