Originally Posted by PeterM1
A stock M3 is not a solution either. Agreed though that cooling the N54 for track duty is a more expensive ordeal.
Have a look at the M3 track forum, top thread right now is "Overheating at the track" with overheating reports within a few laps and 80F, and discussions on cooling mods...
Love the one guy that said: "guys I've found that if you turn on the heater at the track, it really helps out the high temps. This really isn't a problem, because the windows are down, so you really don't notice it that much...."