https://www.usaa.com/inet/pages/carfax_vehicle_history_reports - Saving money is a huge benefit of buying used vehicles at Carfax. You easily find used cars and sellers at Car fax not to mention being able to compare prices with each other until you find the best deals available at carfax.com. So if you want to spend money on a used car, you can check out carfacts before making a purchase.