There have been a lot of underdogs to come and go throughout NASCAR's history. Just last season alone we saw several underdogs like Trevor Bayne and Regan Smith win races that no one expected them to win.
Only certain underdog stories, though, will stand the true test of time in NASCAR. As the 2012 season comes to a close for example, Brad Keselowski and his underdog story have turned out to be one of the best in the history of NASCAR.
There were other underdogs before Brad, and there will always be underdogs after him as well.
Some underdog stories happen throughout a driver's career, while others can happen in a season. As the sport continues to change, the story of the underdog changes with it.
From the battles of diversity of Wendell Scott, to the miraculous comeback of Alan Kulwicki, NASCAR has seen all types of underdogs throughout its long history—and will hopefully continue to see many more.
Here are the top five best underdog stories in NASCAR history.