Moisture in an airplane tire will freeze at 35,000 ft. Then 15 minutes later, you try to land on it. Makes sense to use N2 w/out moisture.
I can't really say what it may or may not do for a race car at 200 mph. But my vehicles never go 200 mph. So it seems to me to be an argument similar to this: Since radiation treatments can kill cancer, I should have a radiation treatment even if I don't have cancer, just because "look what it does for cancer." So since it might do something for a 200 mph race car, I just KNOW it must be doing something for my 60 mph TT.
I've been using 79% N2 every tire on every car and TT I've ever owned with no issues that would have been avoided if only I'd had 100% N2 in them.
I'm convinced it's a waste of time/money etc for our purposes.
1988 Coleman Sequoia - popup (1987-2007)
2012 Roo19 - hybid (2012-2015)
2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10