Tire stagger AND cleaner air. With tire stagger the car will always be faster turning so they carry the turn as far as they can then start the next turn. They would also have cleaner air down low - nothing buffeting off the wall. From a safety standpoint I'd like to stay as far away from the wall as possible, if anything goes wrong you have a lot more room to maneuver.

So regardless of all this, why do the NASCAR boys run up against the wall ?!?!?