Did you check the title out on it? As of yesterday, NYS was still reporting a GMAC lien on the car, so unless it’s parts, you might want to check that out.
http://www.nysdmv.com/titlestat/default.html
VIN number: 1G4GK4779GP450374
Model year: 1986
Vehicle Make: BUICKTitle Issue Date: 06/25/2007
Number of Liens: 01
Liens:
GMAC