 I purchased my Nissan 2009 370Z Car on February 26, 2009. I have been very disappointed with my 2009 370Z Car, because you can't drive it over 4000 RPM's, if the ambient temperature is over 90 degrees. As a result, I only have 630 miles on my 370Z!  The 370Z Car, without an engine oil cooler, will over-heat! The engine oil temperature reaches 280 degrees, if the ambient temperature is over 90 degrees, and it will do it in a very short period of time.  When this happens, the car's engine RPM's are reduced from 7500 RPM's to 6500 RPM's, and if the engine oil temperature reaches 290 degrees, the engine's RPM's will be reduced to 4500 RPM's, which is approximately half of the 370Z Horsepower!