"Carfax" is the key to my success. I'm a car dealer I buy old cars with low miles from the auctions ! Carfax helps me a lot to see how many owners the car had , it tells me how many service it has and where it was serviced at ! It also reads me the miles in the dash! Which this is very important for me because I buy old cars with low miles so I have to make sure its actual miles . Carfax tells me if the car had accident or not ! If it has accident it tells me where and with what it was hit. I love carfax , I love the idea of it , and I love the cheap prices for the unlimited carfax report ! In the end carfax is the best for everyone it helps you make the best choice for your next car .