Also don't forget to add into the equation that most of the Hendrick powered cars ran over 100 miles, some up to around 150 in practice, then shut down and ran the 5 miles for qulaifyihg, then shut down and ran the 500 mile race. There was some talk about all that extra running during the practice sessions as most of the others just ran as few miles as they could and then parked the cars. And there is the possibility that they could have gotten some bad parts as all I have heard was that something broke in most of them. But no specificsas to if it was the same thing or what.
Ron