The most relevant data point is the selling price of a similar 2015 Mercedes S400 V6 3.0L Standard with 160,000 km mileage, sold for SAR 169,000 in June 2023. The car to be estimated has lower mileage at 110,500 km, which typically increases value. Among the listed prices, the closest match is a 2015 Mercedes S400 V6 3.0L Twin Turbo with 101,000 km listed for SAR 190,000, delisted in August 2024. This suggests a higher market value than the sold car. Considering the average condition of the car to be estimated, I adjust the value slightly lower than the listed price but higher than the sold price, accounting for the mileage and condition differences.