They seem to say it will be a 2 year wait before we see them in the States though... but 550 hp and significantly reduced weight (200-300 lbs!) will definitely keep it a top it's pedestal!
http://www.caranddriver.com/re..._news
Although these are the guys who picked the M3 over the GT-R It will be interesting to see if the spec-V produces a more "connected" driving experience, GT3 RS compared to 911, or if it is just what the GT2 is to the 911 Turbo, more power for the sake of power.
I think road and track reported nissan engineers were considering ditching a/c for the spec-V version but decided against it!
