http://xbox360.ign.com/articles/990/990267p1.html
While Forza's AI has always been good, there's now an AI pressure system. This is an additional layer to the Drivatar system (which learns from your racing style). If you're riding an AI driver's tail on medium difficulty, he may feel the pressure and make mistakes. Yes, you can actually sweat guys now. On the higher difficulties the other driver may not be impacted by the pressure in the same way.
Wow, you can put preassure on the AI
http://e3.gamespot.com/story/6211100/forza-motorsport-3-hands-on?tag=top_stories;title;1
Where Forza 3 really impressed us at E3 2009 though, was inside one of the three simulators that Microsoft has set up behind its booth. These simulators incorporate force feedback steering wheels, three pedals, three widescreens, and hydraulics that really make you feel every bump in the road and, apparently, necessitate the wearing of a seatbelt. Most of us will never get to experience Forza 3 in this way outside of an event like E3, but the fact that it's even possible to really underlines just how much attention to detail has gone into its making.
