To estimate the price of the 2020 Renault Duster I4 2.0L PE (Base) with 145000 km mileage, I first looked at the selling prices of similar cars. The closest match is the 2021 Duster SE (Mid) with 90000 km sold for 39000 SAR in November 2023. Adjusting for the base variant and higher mileage, the price should be lower. The 2020 Duster LE (Top) with 56000 km sold for 35000 SAR in December 2023, and the 2018 Duster LE (Top) with 69000 km sold for 34000 SAR in December 2023. Considering the base variant and higher mileage, the price should be lower. The 2019 Duster SE (Mid) with 50000 km sold for 36500 SAR in March 2024 and May 2024, and the 2019 Duster LE (Top) with 103000 km sold for 43000 SAR in August 2023. Adjusting for the base variant and higher mileage, the price should be lower. The listed prices for similar 2020 Duster PE (Base) models are around 35000-38000 SAR, but these are higher than actual selling prices. Considering all these factors, I estimate the market price to be lower than the listed prices and closer to the lower end of the selling prices for similar cars.