Yes, it was:
Found this info from an article online:
Pepsi-Cola trying to liven up image
Chicago Sun-Times | January 16, 1989 | Nancy Millman |
Pepsi-Cola is rolling out a promotional barrage in support of both its sugared and diet Pepsi products, trying to create some sales excitement in the traditionally dull first quarter.
Trying to grab the attention of the young adult market, Pepsi is hooking up with the Pontiac division of General Motors for a national promotion that will give away more than 100 Grand Prix SEs in a sweepstakes.
And in a setup much like an instant-winner lottery, Pepsi buyers who find their license plate numbers on in-store displays will win one of the cars on the spot.
....
and a couple ads:




Post Merge: April 21, 2010, 08:07:32 AM
just wondering cause there was one in the junkyard here.


I got tipped off by the Pepsi floor mats:

And found that the switches had different colors:

And I am not sure if the cluster was different:

And I think the interior was grey and blue colored:


Ans since i know you guys love VIN numbers, I got a blurry picture of it:
