Other than drafting, not much.

People can swivel their heads on their necks, sense of hearing tells you alot as well.Not like your in a car and have blind spots.You can also talk to all the guys around you, although you'd never know that from the TV coverage, the commentators never shut up long enough so the viewers can hear the chit chat going on in the peleton.You can catch very brief parts of it but never enough to get an idea of whats really going on.Sometimes I wish they would just shut up for a few minutes so we can hear what the riders are saying to each other, its kinda facinating sometimes and far more accurate than the BS liggett and sherwin spew all the time.