I have been in the auto repair buss. for over 20yrs. I cant tell you how many times people bring me a car with a clean carfax report and I inspect it for them and find out it has been in an accident. Some minor but plenty hit hard. IMPO carfax is not with the papper its printed on. ALWAYS get a mechanic you or someone you know to look at the car..its the only way to be sure.