Given the lack of specific data points such as selling prices, offers accepted, and listed prices, I will use the new car price and apply depreciation logic. Assuming a new 2016 Mercedes G500 Brabus V8 4.0L Twin Turbocharged Standard SUV had an approximate price of 800,000 SAR, and considering a depreciation rate of 10% per year, the car would depreciate by 80,000 SAR each year. Over 8 years (from 2016 to 2024), the total depreciation would be 640,000 SAR. Therefore, the estimated price would be 800,000 SAR - 640,000 SAR = 160,000 SAR.