Wanting to hunt down a chevelle

[Speedy650]

Hi all. ive been looking for a way to track down my dads 70 chevelle SS that he got rid of years ago. he did crash it but i dont think he scrapped it. just sold it. so does anyone know of a site(s) that would help me track down the car as i would like to buy the car back. im really hoping it was just purchased and is just sitting in a garage somewhere. any help would be wonderfull. Thanks! -Mike