Great guess on the C body.

I will look and see if my brother or father has any old documentation, knowing my father, he still has something somewhere.

The point I was trying to make is that it was done more often than people might think. Don't think for a minute that employee cars were not
tweaked slightly or radically.

Chrysler also was the only one of the big three to make concept cars for the auto show that were actually road worthy. Has anyone heard of the Dodge Diablo that turned up a few years back?
The concept car was supposedly destroyed as they "all were after the show", however many were not truly destroyed but live out their days locked away in the designers garage. The Diablo now resides in Chicago in a private collection, and yes it is very real and very cool.

These things exist and they are out there. I wish some other UAW brat would chime in and add to the stories. This would make a great topic on its own.