[Trakrat]

I would suggest you start taking pictures of all the issues for documentation... especially those that don't match the PPI.

I'd also suggest you take the car to a dealer of the same manufacturer (I have no idea what kind of car you are talking about...) and have them do another PPI.

At that point you'll have documentation that doesn't match documentation from them.
The conflicting documentation can be valid as evidence in court.
Also, depending on what state... it is against the law... look up Fraudulent Misrepresentation.