Buyer Beware about carfax....recently a person was buying a car and relying on carfax....buyer got in touch with the previous owner....that owner stated the car had heavy collision damage...when buying a used car always ask to talk to or phone previous owner...always take a possible car purchase to a mechanic even if it will cost U a few bucks.
http://www.autopi.com/carfaxCBS.html
Read more if U like.
Go to Google type in: "bad news about car fax."