I was thinking the same thing about the Magna.
We have a V6 Magna. Very nice car, but nothing like the "production" Magnas that ran around in Bathurst. No option for a V8 rear wheel drive when we got ours.
I am not a Holden man, I just think the Monaro won because it was the best car on the day. If the Cirtek Porsche didnt break down, it may have been different. It out qualified the Monaro, but that never gets mentioned.

These sour grape arguments about the Monaro are just like the people who whinged about the Williams winning in Formula 1 years ago, and the Sierra Cosworths in the touring Cars etc,etc,etc..