The AI at Road America seem to have a problem with going through The Kink leading onto the back straight, quite a few cars per lap seem to either carry to much speed or their line isn't right, anyways they end going sideways..The new 964 is a good example of this running at 100% which is lower than I normally I use as the AI seem to be quick here..
Road America needs some attention for sure, no matter what i do they are so much faster in the carousel and as mentioned have too much speed for the kink.