Carfax is not that great. A friend in Chicago had his Audi TT in a really bad accident, the insurance ended up paying like 22k to repair something that was worth 26k at the time. the car had a ton of damage. It never showed up on Carfax and he traded it in. Then he bought a Lexus SC 430 and it was stolen one day when he left it running while getting coffee and it was smashed really bad and of course nothing showed up in Carfax (like 38k damage for a car worth 65k). He traded it in for a Mercedes. I think Carfax is pretty limited in what it shows, imo.