jtara - 5:28 pm on Mar 21, 2007 (gmt 0)

your Vehicle registration

Actually, in California, vehicle registrations have been private for quite some time now. It's not possible for a member of the general public to obtain ownership information based on a license plate number. That is now restricted to law enforcement, insurance companies, etc.

This was a response to a number of high-profile "stalking" cases a few years ago.