I'm sure we can appreciate your National pride but that really has nothing to do with the reality of it.
Trans Am "grew" into a more diverse class. The 70's gas crisis and influx of japanese imports had something to do with it.
Smaller displacement motors were allowed along with smaller cars as compared to the American "heavy iron" musclecars.
The emphasis of VTA has centered around the most prolific days of Trans Am.
From a purely realistic viewpoint, the Mazda would be more of a Mini chassis as compared to a standard 1/10 touring car chassis.