The profile or intro idea sounds nice but having details about your car which can or will be viewed by the police, whats to stop them from just targetting us ? They could pick who they want to bust based on their modifications perhaps and then just wait down the road from the house to pull us over.
Not saying this will specifically happen but with the police and government wanting to blitz modified cars, it would make it sort of easy to find out who has what type of modifications.