I am not a fan of shooting on the track. That said it is also very difficult to obtain a track side pass just to shoot racing cars. But sometimes when you do get to do it, the shots often come out looking very much the same as the other photographers because there are only so few photo opportunities for you to get creative on the track.
I am not a fan of freeze frame photography, where the car and its environment is frozen in time with a high shutter speed shot. I prefer to have some motion blur to show case the speed.