Quote from: 90TGPMagazines always test the new cars 1 year ahead of time. So the year would be 87.

That's what I figured, but you both posted '88, so I didn't even look at the date in the link the first time.  List updated.

Another one with at least a picture of a TGP(maybe some info on it, unsure)...see my other thread in the same General section here for a picture.


AutoWeek, May 29, 1989-Volume 39 Number 22-pp. 32-33
The Magnificent Seven; center 2 page spread w\entire '89 Pontiac line inc.Turbo GP and, of course, the TTA, in front of winner's circle at Indy

More(some of these are on ebay all the time, mainly just ads w/ pictures and no TGP specific info).

Car Craft, July 1989-Volume 37 Number 7-pp. 102-103
"Both of these special, limited edition Pontiacs leave the factory on just one make of radial tires." Same as above but with Turbo Grand Prix in place of Indy car on text page.


Car & Driver, May 1989-pp. 150-151
The Magnificent Seven as mentioned above.

I found this info on a TTA website.

Something else of interest(a Book)..

Standard Guide to American Muscle Cars, edited by John Gunnell, published by Krause Publications. Page 271. A supercar source book 1949-92. 1989 1/2 Pontiac 20th Anniversary Turbo Trans Am Indy 500 pace car. One page with two photos and text. One photo is press photo with the car in front of pit lane. The other photo mistakenly shows the 3.1L Turbo from the Turbo Grand Prix as the TTA's powerplant.