I started by examining the selling prices of similar cars. The 2013 ML350 with 215660 km sold for 67000 SAR, and the 2014 model with 120000 km sold for 62500 SAR. Another 2013 ML350 Turbocharged with 229000 km sold for 70000 SAR. The target car has 158700 km, which is less than the first 2013 model but more than the 2014 model. Considering the mileage and the fact that the target car is not turbocharged, its value should be slightly lower than the turbocharged model. The listed prices show a 2013 model with 138000 km listed for 59000 SAR, which is lower than the selling prices, indicating a possible negotiation margin. Considering these factors, the estimated price should be slightly below the 67000 SAR selling price of the higher mileage 2013 model but above the 59000 SAR listing, leading to an estimate around 65000 SAR.