........... some states have a VIN lookup which might help you narrow down your search a bit. For example in Ohio you can see if a car is titled there and which county it currently resides in but you won't get owner/address info. If you can get the general geography figured out, perhaps a board member in that area may recognize the car.
Ohio Title Lookup:
https://bmvonline.dps.ohio.gov/Search/Title thanks for that! I checked a bunch of my former & current cars (I have 2 still titled/registered in Ohio, one wasn't found
)
but there were a number that show active with my Lake county titles & most were sold ~20 years ago, a couple were listed inactive title surrendered out of state
my Lil' Red now in Lorain county, my El Camino now in Cuyahoga county, my Charger now in Geauga county
&
my 442 surrendered to ID, my Charger surrendered to MI