Yeah it is tailhappy and people with heavy feet will be punished. To be honest that is one of the factors why it is so extremely challenging for me personally. It requires a lot of skill to drive it (same as with GP79 mod)
I find it can spin even at full throttle in 5th or 6th gear around a quick corner... just strikes me as a little weird when it does that.
Fantastic modelling and sounds though
Adjust your setup heavily so it wont spin that soon I think i have solved the problem with my Monza/Brianza setup (see rF setup forum)