What about the 1989 Trans Am Pontiac Turbo coupe? I saw one of these click off consistent 12.80's at Houston Raceway Park back in 1990 or 1991 with nothing more that a flowmaster muffler and computer chip. Same engine as a grand national but in a sleeker body. I believe they only made a limited number, something like 2000 or so. White with Beige interior and Gold spoke wheels, it really was a good looking car.
I also had a 1986 Mustang LX which I purchased in 1986 with 2000 miles. Finally modded it up to the point of building a 347 stroker, 5 speed Tremec, Cobra R's, etc. That car was a blast!
Paul