I started by looking at the selling prices of similar cars. The closest match is the 2016 Ford Focus I4 1.5L Turbocharged sedan with 143000 km, sold for 28000 SAR on 2024-07-04. Another close match is the 2016 Ford Focus I4 1.5L Turbocharged sedan with 140000 km, sold for 28000 SAR on 2024-01-19. The 2018 Ford Focus I4 1.5L sedan with 200000 km sold for 26500 SAR on 2024-05-09. Considering the mileage and condition of the target car, I adjusted the price slightly lower than the 2016 models due to higher mileage and older year. The listed price of a similar 2017 Ford Focus I4 1.5L Standard sedan with 161000 km was 29000 SAR but was delisted, indicating it might not have sold at that price. Therefore, I estimated the market price based on the selling prices of similar cars, adjusting for mileage and year.