I lived in a city with a Nascar track for a while so I’ve been to quite a few races.  Sort of cool but not really my thing.  Fun live but boring on TV.  Found a new way to get into it though, imagine how much fun this would be?  The treadmill is rolling forward and the car tires are actually going reverse.  The car that is actually winning is the one with the tires that are rolling the slowest, hence being pulled by the treadmill upwards. – Forrest