Well,the overnighter is for sure the truth,and we also have what is called the B.S.R. track,which stands for buzz,squeak,and rattle.All the cars are driven over this track to make sure that that is not happening.I can't speak for everyone,however I know that most of the upper management is not in there 20's so you can rest assured that it was not pushed to the limit,just a simple check for the build quality and to make sure that there is no B.S.R. I have not met anyone on this planet that is always in there right mind,starting with me.......LOL....LOL.....LOL