My father was digging through some old paperwork and found the sales agreement when he traded in his diplomat blue 1970 Buick GS455 4speed on a 1973 pontiac gran prix. What is the best way to find out if this car still exists? VIN: 446370H171031
Local Dept. of Motor Vehicles or Secretary of State (whatever it's called in your jurisdiction) can run a title search. Usually, they charge a fee. If it has had any title work done, they will have records of the last person to do so.