Law enforcement can run vehicles by vin. If you know anyone that knows anyone in law enforcement that may would like a gift card to a steakhouse in return for some info it would be helpful.
If it stayed in state, someone that knows someone in the tax collector's office could run a vin.
lexus Nexus has a database named "Accurint". But I don't know if just anyone can pay to access it.
just google it. I found a car a guy was wondering about one time by just googling the VIN.
Also, if there is a forum or enthusiast site out there... post on the most popular one with the description and vin to see if you get a hit.