If he uses Carfax.com and gets lucky, and the car is still registered to
be on the road in some small town, he should have no trouble finding it.
If it's located at say someplace like New York City, then good luck with
that! Only thing he could hope for then, is that Carfax.com would have
the name of the repair shops/dealer where it's being serviced, and maybe
they could tell him the owner?