To estimate the price of the 2013 Ford F150 V6 3.7L Regular Cab XLT (Base+), I first looked at the selling price of a similar car: a 2015 Ford F150 V6 3.5L Turbocharged Regular Cab XLT (Base+) with 191500 km sold for SAR 65000 in August 2023. Given that the car in question is two years older and has a slightly larger engine but is in average condition, I adjusted the price downwards. Next, I considered the listed price of a 2013 Ford F150 V6 3.7L Regular Cab XLT (Base+) with the same mileage listed for SAR 56000. This price is likely higher than the actual selling price. I also noted the listed prices of other similar models, such as a 2014 Ford F150 V8 5.0L Regular Cab XLT (Base+) with 189600 km listed for SAR 38000, which is a lower trim but provides a reference point. Considering these data points and the condition of the car, I estimated the market price accordingly.