This is getting off-track again—

Government agencies paying private companies for your information, or even just asking for it in exchange for something or nothing is legal. That’s because nothing was searched unreasonably (because consent was given by the controller of the information) nor was anything seized against the controller’s will.

You are not in the picture. The information might be about you but you don’t control the information, the car company does. From a legal standpoint, you are irrelevant for the purposes of Amendment 4 protection.

Amendment 4 protects the controller of the information from Government seizure but does not protect the subject of that information. Privacy laws are what are intended to protect the subjects of information. There is some overlap of course. For example, your computer has lots of information about you and what you did in the past. You would be both the subject of the information and the controller (since it’s stored on your computer).

Please remember, I am describing what the law is, not what it should be.