To estimate the price of the 2021 Toyota Corolla XLI I3 1.5L with 70500 km mileage, I first looked at the selling prices of similar cars. The closest match is a 2021 Toyota Corolla I3 1.5L XLI (Base) with 71000 km sold for 53000 SAR on 2024-06-22. Another similar car, a 2021 Toyota Corolla I3 1.5L XLI Executive (Base+++) with 91000 km, sold for 50000 SAR on 2024-08-20. Considering the mileage and condition, the price should be slightly higher than 50000 SAR but lower than 53000 SAR. I also reviewed listed prices: a similar car with 71000 km was listed for 53500 SAR but delisted on 2024-06-23, and another with 72000 km was listed for 56000 SAR but delisted on 2024-04-25. These listings suggest a market price around 53000 SAR. Taking all data into account, I estimate the price to be 52000 SAR.