The coolness of the CUP tires though are offset by the cost of early replcement due to EXTREMELY low tread life......maybe they'll be optional.
The only real concern I have is the weight......4,200lbs seems bit high to me considering that GM was trying to offset some of the necessary weight gain due to the blower & upgraded/stronger suspension components by saving weight were possible (lighter tires & wheels come to mind). I'm, hoping that 4,200lbs number was pulled out of thin air by Jloplink. I was hoping they would be able to keep it more around 4,000lbs.....I'm sure it's only a matter of time before we get the "real" weight from GM.
Now I just have to be impatient over cost, options & colors!