Originally Posted by PaneristiDriver
While I cannot argue its a stout motor, I would wholeheartedly disagree. The motor in the GT3, GT3 RS and RS 4.0 is a better motor. Luckily for everyone else it was not in the running due to the fact that is it not currently on sale since GT3 production is over for the 997.
If in 2011 Porsche thought that even the 4.0 iteration would have difficulty closing the enormous points gap that year after year had separated the S65 from the GT3's 3.8., it may not have been coincidence that the 4.0 version was conveniently ineligble for the 2011 competition.