To estimate the price of the 2013 Chevrolet Trailblazer V6 3.6L LTZ (Mid) with 284000 km mileage and average condition, I considered the following data points: 1. Selling prices of similar cars: A 2013 Trailblazer V6 3.6L with 262000 km in good condition sold for 22500 SAR on 2023-11-29, and another with 202000 km sold for 23500 SAR on 2023-11-04. These cars are in better condition and have lower mileage, so their prices are slightly higher. 2. Listed prices: A similar 2013 Trailblazer LTZ (Mid) with the same mileage is listed for 27000 SAR but not delisted, indicating it might be overpriced. Other standard variants with similar or higher mileage are listed between 21000 and 26500 SAR. Considering the average condition and higher mileage of the target car, I adjusted the price downwards from the listed prices. 3. Depreciation and condition adjustments: Given the car's average condition and higher mileage, I estimated a lower price than the listed LTZ variant but slightly higher than the lower trim standard variants.