I used CARFAX report when I was searching to buy a used car. It was helpful for me because I was about to buy a car of a friend of mine. She had said the car has involved no accident. However, when I checked the CARFAX report the car had an accident as well as an odometer issue. So, I did not buy this car. I purchased another one which has clear CARFAX report. However, I realized that some information may not be included in the CARFAX report. For example, I am the third owner of my car but the CARFAX says I am the second one. It is better if you could check your algorithm to clarify the number of owner. In addition, CARFAX price adjustment means nothing to me because there were no clear pattern about this adjustment. You may add a legend about this adjustment. For example, what are the criteria when a car is worth more or less?