I'm following you guys on all these points... but, here's the caveat to that:
It "is" saturn yellow. It precisely matches the factory paint in the frontal area. And, It has multiple layers of paint on it.
I'm thinking paint shop, just due to all of the layers of paint (that chip isn't all the way through!) and the fact that the color is the exact same color as the car
I've never been a part of the 914 assembly line or the VW paint line but I have been in quite a few automobile assembly plants... one of the bennies of being a Michigander.
Sometimes cars would have to be pulled off the line to be repaired, sanded, resprayed etc.
Andy has a point though... how else would it get in the center tunnel? It came out through the shift console hole. It could get in there three ways:
Rear Opening
Shift Console
Front Opening by the Cluster
It was between the front opening and the shifter. It could have been pushed forward when the cables were installed. I found it while re-installing the brake line and everything else!
Maybe -- Unbolt it. Lunch bell or the final bell rings. Toss it in the cockpit and, like horseshoes, you have a ringer... it lands in the shifter hole (or most of it does). It takes a bumpy ride to the next station and falls completely in until the day I found it.
Or - it could be something from a bodyshop later in life. It just "looks right" if you know what I mean. All the layers of paint have me coming back to a paint area.
With a 121mm girth, it should leave some appearant clues as to where it was attached though.