To estimate the price of the 2021 Toyota Fortuner GX2 4WD (Diesel) (Mid), I considered the following data points: 1. A 2020 Fortuner GX2 4WD (Mid) with 107000 km sold for 88500 SAR on 2024-05-11. 2. A 2022 Fortuner GX2 4WD (Mid) with 97000 km sold for 103000 SAR on 2024-05-30. 3. A 2021 Fortuner V6 4.0L VX1 (4X4) (Top) with 71500 km sold for 122157 SAR on 2024-07-04. 4. A 2020 Fortuner I4 2.7L GX2 2WD (Base) with 93000 km sold for 93000 SAR on 2023-10-30. 5. A 2021 Fortuner I4 2.7L GX2 2WD (Base) with 177000 km sold for 77000 SAR on 2024-06-03. Considering the car's mileage of 100000 km and its mid-level trim, I adjusted the price slightly higher than the 2020 model but lower than the 2022 model due to the year difference.