In search of the owner of this car!

I don't.know about the state that dart is in, but in california, NO, you can't search for an owner by the plate number, it's illegal.


And besides, o.p.is in Sweden, gonna be hard to get dmv help here.
I'm not sire how to continue. I tried California DMW to ask just questions but I could not go thru due to living outside US.