r1lark

Since it was applied to a Dodge Demon sold by Chicago's Grand Spaulding Dodge (the famous MoPar high performance dealership), GSS meant either 'Grand Spaulding Special' or 'Grand Spaulding Supercharged'. Here is an article on the car (sorry for the 'scan' written over it):

And if someone really wants this acrylic lacquer, I can probably be talked out of it........

This color?

False.......there were changes to the outer upholstery panel on the glovebox door, to the lock/housing assembly, to the key, and to the glove compartment light switch. Maybe more, but a few for examples.

The carpet on the seat back (ie, on the trunk side of the seat back) was eliminated.

Three speed manual transmission?

Rare? Could it be the Firestone 500 tire option number?

Whitewall tires?

49%.......................

Very carefully, you don't want to go against it's grain.........😆..🤐

Wood grained instrument panel?

Change in the manifold pressure gauge?

Well, since you say this person was connected to the early development of the Avanti, I'll go with Bob Andrews.

According to this ad, it was the '55 Speedster:

I'm thinking it's a license plate frame..................