Nope, not officially unveiled to the public as of yet, apart from a handful of moto-jurnos..
As mentioned earlier, it makes its public debut at the Moscow motor show in August, and will go on sale in September...
and what makes us even think that the GT2 RS will fall behind the Turbo in straight line performance in anyway? for starters, its much lighter and with far more grunt.. (A)
Just for the record, the company also claims a rather conservative 0-100km/h time (which roughly equates to 0-62mph and NOT 0-60mph as reported in the posted video) of ~3.5 sec for the Turbo.. while one motor journalist here in Aus has been able to pull a 0-100km sprint in 3.23 sec - that would equate to even lesser time for the 0-60mph as reported in the video..
So I wouldn't be surprised whatsoever if the GT2 RS's 0-100km/h time has been under-reported by the company.. or to put it differently, they aren't being crowing c0cks like the guys in the Nissan's camp..