To estimate the price of the 2012 BMW X5 xDrive 35i with 281000 km mileage, I considered the following data points: 1) A 2014 BMW X5 xDrive 35i with 100321 km sold for 81500 SAR in good condition. Adjusting for the older model year and higher mileage, the value would be significantly lower. 2) A 2011 BMW X5 xDrive 35i with 255872 km sold for 25000 SAR in good condition. Given the similar age and slightly lower mileage, this is a strong comparable. 3) A 2014 BMW X5 xDrive 50i with 184000 km sold for 66500 SAR in average condition. Adjusting for the higher trim and lower mileage, the value would be lower. 4) Listed prices for 2012 models range from 37000 to 53000 SAR, but these are generally higher than actual selling prices. Considering the car's average condition and high mileage, the estimated market price is closer to the lower end of the sold prices, around 25000 SAR.