There are a few reasons why people might not want to show their Carfax report. One reason is that they may be trying to hide something about the car's history, such as an accident or major repair. Another reason is that they may simply be unaware of the importance of the Carfax report and may not realize how much it can help buyers.
If you are considering purchasing a used car, it is important to ask for a Carfax report before you make a decision. This report can help you protect yourself from buying a car that has been in a major accident or has other hidden problems.