[rez333]

Help me with this one, I just don't get it.

The CTS-V can do 0-60 in 3.9s. According to a 36minute SVT promo video on youtube for the Shelby GT500, they say the 2011 will do 0-60 0.1s faster than the 2010. Which makes it around 4.1s for 0-60 for the 2011.

Now, they also said that the 2011 tweaks were for handling and track performance, and in that regard they succeeded given their amazing VIR track times.

But I just don't get why the GT500 is not capable of doing 3.9s, given:
* it has a live rear axle, which if you believe all the fanboys, is supposed to give you better drag performance
* it has better tires than the CTS-V (with SVT track pack)
* it is lighter than the CTS-V by more than 400lbs !!!! (compare the similarly heavy Challenger vs the Camaro SS and see the difference in 0-60 times)
* it has superior weight/HP and weight/torque ratios than the CTS-V

So almost everything, it seems would lead to a superior 0-60 times.

I am guessing there are two possibilities:
1) the 0-60 times from Ford are ultra-conservative, whereas the times from GM are best ever times
2) the CTS-V times were done using an ultra-fast automatic transmission

Anyone else want to give their opinion? (please keep opinions scientific and relevant to the science of acceleration - thanks)