IOM, don't you know that you are totally wrong with your analysis?
Isn't it obvious from most of our Mustang "friends" that until the 2013 GT500 posts a faster lap time at the Nurburgring than the ZL1 did, that Nurburgring lap times don't mean anything. Then, if the 2013 GT500 posts a faster time, a Nurburgring lap time will be the most important benchmark by which any car can possibly be measured.
