Spyderidol:

@ Ferdie and GTlover: The problem is that it is not just a question of what is allowed or not allowed, but also what is allowed to be changed. Also - I suspect that the AWD (RWD) suspension system is so different to the "normal" system that the ACO would not homologate the car unless there was a road version without the RWD system. I don't think its as simple as just "removing" the RWD. Remember that the purpose of the homologation is to try and keep the race cars as close as possible to their road going brethren.Simply changing the hand break is acceptable; changing the whole design of the rear suspension may just be a step too far. (Unless of course they get a waiver).

From the number of things Porsche has had waived in the past one would think they could get away with anything :)

A GT3 RS with the rawness of a CGT would be a perfect dream.