https://play.google.com/store/apps/details?id=com.carfax.cvhr&hl=en - Buying a pre-owned car has its benefits, but to maximize them, you should seek all the help you can from resources like Carfax. Car fax, through carfax.com, provides relevant information that will give you an idea of a particular vehicle's overall condition. Aside from Carfax, get an expert mechanic to physically inspect the car you want to buy.