We've built a few of these into fully caged track kings and their owner's LOVE them.
I'm expecting the first car we built to come back out here in November or early December for Stage 2 of the build. They are pretty incredible cars. They respond amazingly well to performance modifications. Just throwing this out there but we last week we ran a 2.9 0-60. We had a bone-stock GTR out there for comparison tests and it ran a 3.9 0-60.
Were you using the "launch" control feature or was this driver skill?
I looked these up this morning out of curiousity to see what they are going for price wise used. Mid to high 60's for a clean low mile car. Although I am wondering what the difference is between the GT-R and the GT-R Premium. Does the premium allow something like an extra 5 launches before the warranty is voided. :wink Just kidding, relax......I am not a GT-R hater (they do look much better in person) and would consider one for daily driver once the price drops a little more.
Of course I would really have trouble resisting the launch control button even knowing the problems it causes. I have problems with challenging authority. :devil