I am a race automobile driver for my career. Not a famous one on TV or anything prefer that, even though I drive in a local automobile racing location. Both of us have the races usually once every few months, & people bet on the winner, then it is not as rough as the professionals, but the concept is the same. I do have to work hard every weekend though, & when I practice, I constantly have to make sure that the heating & cooling in the race automobile I am using is certainly working; Sure, I am certain that may seem a bit crazy to you, that a race automobile has a heating & cooling system in it. But trust me, proper air quality & temperatures are needed when doing this athletic activity! This is especially true when we race & the weather is extreme. In the Wintertime, if it is too cold, there is no way anyone could do this athletic activity, then that is why heating is so important at that point. During the summertime time months that we race, without a/c, just forget it! There would be no way anyone could withstand the gas furnace prefer temperatures outside & be racing. There would be people falling ill all over the place if that was the case. I always try to make sure the a/c & the heating is modern in our race automobile for this reason. I have a local heating & cooling business specialist I am friends with take care of all the heating & cooling needs in our race truck, & he does a really solid work every time. I have never had a heating or a/c problem. It is why I do so amazing in the races, & more often than not, I constantly win the whole thing!