OK, I am on the same page now.

Once again, I do not look at '68 stuff much, but.....

If they are the same as later cars & the way the VONs worked, early 96xxxx cars would be sales bank / prodotional use. It may just mean special order later in the year.

If the orange cars were used at an event, or at dealerships to promote the new color, then that would be a promotional use even that late in the year. Libraries with old CA newspapers on microfiche would be the place to look for any promotional ads.