I've noticed when I'm passing an AI car they tend to develop a massive amount of understeer at times & slide off the track. I can visually see their wheels turned full lock as they understeer off the track. The only two series I have tried so far are the Stock Car V8's & the Copa De Marcas. I have the AI set at Medium difficulty. **Sorry didn't know there was a Bug Report thread in the General Discussion section. I will post this there.**