To estimate the price of the 2023 Nissan Altima SV I4 2.5L SV (Mid+), I considered the following data points: 1) A similar car with 13000 km mileage sold for 108000 SAR on 2024-05-18. 2) Another similar car with 20000 km mileage sold for 93500 SAR on 2024-08-26. 3) A 2022 model with 26078 km mileage and a lower trim (S) sold for 73500 SAR on 2024-03-21. 4) A 2021 model with 37000 km mileage and a higher trim (SL) sold for 75000 SAR on 2024-06-23. 5) The new car price for the 2025 Altima SV is 123385 SAR. Considering the car's mileage of 21000 km and its good condition, I weighted the most recent and relevant selling prices more heavily. The car with 20000 km sold for 93500 SAR, which is very close in mileage and condition to the car in question.