The car to be estimated is a 2012 Lincoln MKX V6 3.7L Reserve with high mileage and average condition. We have two listed prices for 2014 models: a Reserve variant listed at SAR 45000 with 127000 km, and a Select variant listed at SAR 56000 with 90000 km. The Reserve variant is more relevant due to the same trim. Considering the 2012 model is two years older, we apply depreciation. Assuming a 10% annual depreciation, the 2012 model would be approximately 20% less than the 2014 model. Thus, 20% depreciation on SAR 45000 results in a price reduction of SAR 9000, leading to an estimated price of SAR 36000. Given the high mileage and average condition, we further adjust downwards by approximately SAR 5000, resulting in a final estimate of SAR 31000.