To estimate the price of the 2018 Chevrolet Impala V6 3.6L LTZ (Top) with 267000 km mileage and average condition, I considered the following data points: 1. A 2016 Impala V6 3.6L LTZ (Top) with 180000 km in good condition sold for 57500 SAR on 2024-06-01. 2. A 2019 Impala V6 3.6L LTZ (Top) with 22000 km in good condition sold for 90000 SAR on 2024-03-13. 3. A 2018 Impala V6 3.6L LS (Base) with 166000 km in average condition sold for 30000 SAR on 2024-07-23. 4. A 2018 Impala V6 3.6L LT (Base) with 360000 km sold for 36500 SAR on 2023-10-23. Considering the car's higher mileage and average condition, I adjusted the price downwards from the LTZ (Top) variant's higher selling prices and factored in the depreciation and condition differences.