no doubt a GTR is better than a GTST.
I have a GTST with 270rwkw and its great fun to drive and particularly on the twisties control your in an out speeds has been some getting use to for me, but its intresting.
Launch is a bit gay...but I must stay the slip slide of the RWD on launch is fun...its not fun when u hit peak torque and loose traction in third...although I recently adjusted my camber setup for corner speed..
I would like to have a GTR...and I could if I wanted but now, but I have mine its a real handfull to drive, keeps me intrested and is quite fun...
My best run down the 1/4 was 12.5 but again launch could be better, but my terminal speed is constantly 116MPH....so it has some speed...its just the launch that holds it back from a low 12. We all know a stock GTR will neraly match this...few mods and eat it easily...
If u have the choice, GTR FTW IMO