If you are interested, the Roadster VIN 194679S725437 is registered according to
https://www.add123.com/. I didn't run the report, but if you pay the $4.95 you will get the NMVTIS results showing the state where it is located. You would then have to write to the state to see if you could get the owner's information.
Here are the guidelines for getting a state to give you personal information -
http://www.accessreports.com/statutes/DPPA1.htm
Good luck