The car to be estimated is a 2021 Toyota Corolla I3 1.5L XLI (Base) with 124,000 km mileage. The most relevant selling price is for a similar 2021 Corolla XLI (Base) with 71,000 km sold for 53,000 SAR in June 2024. Given the higher mileage of the target car, a downward adjustment is needed. Another similar car with 125,000 km was listed for 49,500 SAR in March 2024, suggesting a lower market value. Considering these data points, the estimated price should be slightly below 49,500 SAR due to the higher mileage and average condition.