I don't know if this is reported or not. I did a search and couldn't find it listed so here goes. If you are racing in Single Player mode with a number of AI drivers and you pit, when the pit stop is over and you go to leave the pits the program throws the yellow flag. When this happens all the AI drivers start slowing down, and eventually stopping. They never do re-start racing and will stay where they are as you race around the track. Makes it real easy for a newb like me to win a race