Stock R33 GTR weight is around 1550KG. Add driver, fuel etc and that will be at around 1700kg. This would equate to mid 10's @130+ MPH going by the calcs. However, I personally think that it will go faster and well into the 130's TS if Paul can get it to launch.
Guess there is only one way to find out, Paul
Time to go practice your GTR launches