Unfortunately, I've found that the piss-poor AI in GT3 makes truly great overtaking moments nearly impossible. THe problem, I think, is that, unlike real racing, I am usually able to get around all of the cars quite easily (unless I am severely under-hp). In real racing (F1 for example), you may have to set up the guy you want to pass for several laps before actually making the pass stick. It is this area that I hope GT4 really addresses. I would like to have to out-think the AI for a change, rather than just take the inside line right around them every time.