CARFAX saved me from making a huge mistake. My son and I were looking for a Mustang GT for him. We found a beautiful 2007 on a lot with only 36,000 miles on it, that had some minor hail damage. After driving it and enquiring a little deeper, we discovered it had a rebuilt title. The owner of the lot told us it had been salvaged due to extensive hail damage, but that had repaired it (thus the reason for the rebuilt title).
I asked for a CARFAX Report and was told that they did not have one, nor did they have the receipts for the extensive hail damage. I felt uneasy about it, so I got the VIN number and purchased a CARFAX Report at home, and discovered that the vehicle had been totaled in a serious accident. My son was so disappointed! Thankfully, we found a 2006 Mustang GT 2 weeks later that was in excellent condition. Thanks to CARFAX I feel more comfortable with my purchase, and my son is thrilled with his new car!