1979 Trans Am, silver, promo Jan 22, 2017 12:46:09 GMT -7 Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Robert on Jan 22, 2017 12:46:09 GMT -7 This is another of the kit/promos available from the Pontiac dealers.Yes, there is a difference between the 1979 and the 1980 promo. A quick way to see the difference, besides the year on the rear bumper is look at the front seat headrest area.