Bit of a joke TBH that Nissan didn't fit the tranny cooler as standard. It was built for road/track so if they new the temps were going to be an issue they should've addressed that. I can't think of another double-clutch car in it's league that has the same issue.
Not sure how Bruno Senna stayed out for 25 minutes in a GTR (see youtube) ?? Starting to think that the GTR is too expensive to use on track.....