Speed or power is not only factor... updated suspension, electronic stability control*, electronic steering, 6 speed transmission, brembo brakes*, etc.
*w/ brembo brake pkg.
Speed is just a small piece of a larger puzzle.
Again, you're talking about things that probably won't be too noticeable unless you're driving the car to the limit a la Frank Bullitt. During everyday driving, the 2010 makes right and left turns and comes to a rest at stoplights probably exactly the same as the 2011 does. Again, I don't think his original post was knocking the car, he was just saying that he didn't notice enough of a performance difference as he may have thought. BTW, the 2011 is an awesome car. So is the 2010 for that matter.