I remember someone posted in here (or possibly in the video thread) of a bunch of 'sick stanced y0' cars trying to turn out of a junction.
Most of them needed to reverse back and forth a couple of times just to make a 90 degree turn, and pretty much every single one made some lovely scraping noises as they came off the side road.
Also think about how you exit the corners. If the guy next to you gets a better line through the corner and exits 5mph faster than you, he'll carry that extra speed all the way down the next straight.