In 2004, NASCAR introduced the "Chase for the Cup," revamping the format to keep the championship competitive until the season's final race. Over the years, 36 drivers have won the championship.

NASCAR is considering rotating the location of its championship race to promote fairness and enhance fan engagement.

With NASCAR coming back to Las Vegas for the Pennzoil 400, it's time to look back at the last 27 years of the race's history.