One the street, the GT-R gets boring after doing a few grin inducing launches. The acceleration above 80 mph is merely average for it's class. A stock C7 vette feels like it has the same pull at higher speeds. It's nearly impossible to approach it's handling limits on the street (which can be said for most sports cars), and it feels artificial / robotic through the wheel. The throttle response from a roll sucks, and it just doesn't sound that good (even with Akrapovic race exhaust). From a roll at 70mph, I counted 3.5 seconds from the time I matted the pedal to when it got into the lowest possible gear and took off.
On the track though, the GT-R is an absolute monster. For the money, nothing is faster out of the box. Gotta give it to Nissan for the technology in this car for the price point. It will embarrass cars that are 3X the money. 90% of drivers could pilot the GT-R faster around a track than with any other production car. Just point and shoot. The car will do the rest, and bail you out if you get into trouble. The GT-R makes you feel like a super hero. That said, I had much more fun with the R8 and the 458, even though I was going slower.
For my money, which I don't have nearly enough of, I'd get a Carrera S.