A "press preview" or prototype version of the Z-28 was on display at the American Road Race of Champions event at Riverside
at the end of November '66. It may also have performed some pace car duties that weekend as well, although that is unclear.
It was also shown to the motoring press at the Mesa Proving Ground in Arizona shortly thereafter. A 2-page flyer (shown below)
was provided to give the press more information for use in their write-ups. You will note that the name of the car is Z(hyphen)28
and not Z(slash)28. Chevrolet did not make use of the Z/28 moniker until mid-year 1968 and Chevrolet factory literature and ads
used the Z-28 name prior to that. A subtle difference but worth noting.
Some pics from Mesa, AZ. Interesting that white stripe tires are fitted and the rear spoiler is a one-off piece with a completely flat
back side. A rear spoiler did not end up being installed on a '67 Z-28 on the assembly line but a small handful of cars that did get
run in the Trans-Am series in that year did get them. In at least one documented case, the factory only provided a blueprint and
the spoiler was homemade based off the print.