The most relevant data point is the selling price of a similar 2015 Mercedes S400 V6 3.0L with 160,000 km mileage, which sold for SAR 169,000 in June 2023. The car to be estimated has lower mileage at 112,000 km, which typically increases its value. Among the listed prices, the closest match is a car with 110,500 km listed for SAR 158,000, but it was not delisted, indicating it might not have sold at that price. Another similar car with 101,000 km was listed for SAR 190,000 but was delisted, suggesting it might have sold for less. Considering the selling price, the mileage difference, and the listed prices, the estimated market price is adjusted slightly higher than the sold car due to lower mileage.