Might be pretty difficult. Some states don't issue titles for cars more than 10 years old, so if it's sitting in someones garage, not registered, you'll never find it. Other states, like PA, will not release vehicle information to anyone but the rightful owner, so that would be a dead end as well. Also in PA, if a car is not licensed for 5 years, it gets purged from the DMV data base, so any info is gone until it is licensed again. If the car is in a salvage yard, you'll never find it either. Your best bet would probably be to check all of the registries, and hope that it is in one of them. You could also run an ad in a national magazine, like Hemmings, offering a small reward for any information. Just make it clear that you are looking for your dads old car, or the current owner might never answer you if he thinks that you are trying to recover the car for someone because of some legal case.
