To estimate the price of the 2015 Toyota Corolla XLi I4 1.6L XLI (Base) with average condition and 173773 km mileage, I first considered the selling prices of similar cars. A 2015 Corolla with a similar variant and higher mileage (244000 km) sold for 31500 SAR in June 2024. A 2017 model with the same variant and higher mileage (265000 km) sold for 31500 SAR in July 2024. A 2016 model with the same variant and good condition sold for 40000 SAR in March 2024, but it had lower mileage (218500 km). The listed prices for 2015 models were 35000 SAR and 39500 SAR, but these are typically higher than actual selling prices. Considering the depreciation and the average condition of the car, I estimate the market price to be slightly lower than the 2015 model that sold for 31500 SAR due to its higher mileage and average condition.