getting the information for a particular kind of car is not that difficult to do. hell the state of Washington used to supply this information upon request! I got some mail once because I had a particular kind of old car, and it wasn't a recall notice.
But you know something? if it was stolen, it would be easier to spot because of the database! They aren't going to keep the car, they're going to unload it, and when someone goes to look at, the Criminal, won't even know about the plaque, and may look it up on the web, which you would of course have noted as STOLEN...CALL THE POLICE !!!. In which case you would get it back BECAUSE of this registration !!! Just keep that in mind
The database would NOT include addresses of the owners, or even the City but may include the state...it would be up to you..in fact ALL of the information would be up to you. The more complete it is, the better.
believe me, if someone wants to steal your car, they will, but they won't be shopping here for it. The VAST majority of car theft are thefts of opportunity. i.e. you left the keys in it, or unlocked in a bad area, advertised that you had a super expensive stereo in it, or car jacked....But shopping for a particular vintage car, that is very easily spotted....would be a very rare occurrence..
Rich