You can start searching for other 76 corvettes. Tracking that specific one is almost impossible unless you are willing to do some heavy forensics. Start with the bill of sale from your dad to whoever bought it Contact that person and nope he still has his bill of sale to the next guy, etc. If one link in the chain is missing, you are finished.
The laws regarding disclosure of ownership date back well before 9.11. They go back to the late 80s / early 90s. Actress Rebecca Shaffer was tracked to her home by a stalked who got the license plate number of her car. He was able to get the owner info from the DMV at the time. He went to her home and, when she ansered the doorbell, shot and killed her. Since then. laws to protect privacy were enacted around the country.
