2012 Mercedes GL350 Bluetech Diesel 4-Matic 7-seater - $8,000 (Scottsdale)

The diesel engine in these cars last for 500k miles with good service. Also, many of the engine components are covered under extended warranty. I can’t remember the exact details though. Just having a oil change and replace the front right shock. The front left shock was replaced one year ago. Everything works, and there are no major issues with the car. It has heated seats, a back up camera, Blindspot, monitoring, and electric opening, closing trunk, and electric folding 3rd row seats. These pretty much have the best gas mileage of any SUV you can buy.