#3 Round eliminations
Is it a cheap gimmick? Sure, but so is are so many of the other gimmicks NASCAR has employed over the last couple of years. With that in mind however, it would also be a great way to intensify the on track product, make things more interesting for fans and even create grave implications for drivers championship pictures.
Again, its probably a cheap gimmick and is going to make some fans angry, but not if its done in the right way. For example, NASCAR doesn’t exactly have to eliminate drivers from the first stage on, they could save the eliminations for the later rounds of the race and thus widdle the field down to a competitive few with a chance to win it all.