hard to tell (at least for me)
I didn't race a teener yet
my teener is an unrestored, high grade original car - so I won't race it
but I can tell you that the Boxster S with manual tranny is a real fun car
on that small handling parcours with narrow corners it was much better than the Carrera S and even the Carrera 4S (o.k. - that's my personal feeling/impression)
on the longest straight part (just before the "more than 180° corner") we had more than 7k rpm ... the tiptronic of the Cayman S shifted higher automatically even when we used the "manual" program - that was absolutely sh*t, because it didn't shift down automatically when I braked hard, so I was in a higher gear as I hoped to be and it was hardly possible to accelerate fine out from that "more than 180° corner"
in comparison, the manual shifter Boxster S waved it's back at the exit of this corner, even with PSM on
that's fun
the 911s are a little too heavy for such a small/narrow track, IMHO
but especially the Carrera 4S does really well ...