This is kind of old news, but since we're having a hard time reading that "0-60 Magazine" article, thought I'd post this for those who missed it.
Road & Track Magazine - Clash of the Coupes: 2009 Nissan 370Z vs. 2008 Porsche Cayman S (4/2009)
"An observation we made over the week was the VQ's sensitivity to temperature. Engines prefer cool weather, but the VQ absolutely detests hot days. During the track day, we had to pit after about four laps in each session, the VQ winded by high oil temps and limited by its engine management to 6500 rpm."