I've had oversteer in the wet, but nothing that was a problem. Only when pushing the car pretty hard though.

In the dry, there was one particular autocross corner where the back kept stepping out on me on exit. The pavement may have crowned a bit at that spot though, which might have "helped" the back to get loose. I certainly wasn't trying to get the back loose. Again, it wasn't a problem -- just a steering correction, no throttle lift was needed.