When evaluating used car prices in the luxury SUV market, this 2015 X5 xDrive28i priced at approximately $22,970 (including transfer fees) offers exceptional value, saving you about $85,457 compared to the original new car price of $108,429. For anyone looking to buy used car options that blend luxury and affordability, this is a standout pick, especially since it comes with a 3-year/90,000 km warranty, providing additional peace of mind. Industry data—including insights from kbb car value trade tools that track used car values—indicates that the 2015 X5 model maintains relatively stable residual value, with projected price depreciation of only 8-10% over the next three years, making it a cost-effective choice for luxury SUV buyers. Its well-documented maintenance history and accident-free status further enhance its long-term value retention, solidifying its place among the best used cars for those seeking lasting value.