Believe it or not the guys in the cars are almost better off than the fans because they are more conditioned to the heat, and are active.........********..put on nomex underwear-nomex socks-2layer driving suit-race shoes-headsock -helmet-driving gloves..then sit in the sun[simulating waiting to get pushoff] for 20 min. then tell me your as comfortable as the guy sitting in the shade,sipping iced tea in 't' shirt and shorts....racers pay a price in extreme heat..bottom line ..the track may have made the right call here for all involved