Stock car racing is cool! NASCAR SUX! The whole organization is a whore for coporate sponsorship, media outlets, ect. It is so commercialised the competition has suffered for decades!
Won't matter much what happens to the big 3 though, independent teams are supported by commercial sponsorships and NASCAR is supported by the teams and a huge share of the merchandising and media. It will continue on in its bastardized, semi aborted form.