To estimate the price of the 2017 Mitsubishi Lancer I4 2.0L EX 1.6L (Base) with 155000 km mileage, I started with the new car price of the 2025 Mitsubishi Lancer EX 1.6L (Base) which is SAR 77500. Given that cars depreciate by 10% each year, the depreciation over 7 years (from 2017 to 2024) would be approximately 70%. Therefore, the estimated depreciation amount is 77500 * 0.70 = 54250 SAR. Subtracting this from the new car price, the estimated value is 77500 - 54250 = 23250 SAR. Considering the high mileage and the car being in good condition, I adjusted the price slightly downwards to account for the wear and tear.