JC, If they build sheet is purchased, your friend can look at these two boxes:
They will tell you who it was charged to and who it was shipped to. This is a clip of 89 #074s build sheet. It was shipped to the GM Service Dev. Center. This is where the manuals where written and service techniques were ironed out. Of course a week after it was delivered the 89MY was cancelled so the car was reassigned to the PR department.