Other than possessing a strong will to win, there are few constants in the driving styles of successful NASCAR competitors.
Some, like Matt Kenseth and Terry Labonte, have made their mark by racing calmly and cleanly throughout their careers. In the right car and season, that can be an incredibly effective strategy—just ask Kenseth about his one-win championship season in 2003, or Labonte about winning the 1996 title despite winning two races to Jeff Gordon's 10.
This is not a list celebrating those drivers.
This is a list celebrating the folks who have made their mark on the sport in another way—driving through their competitors to take scores of victories and championships over the sport's history. It's a style that was prevalent in the sport's early days and still has its value today.
Some of these drivers have earned reputations for being dirty, while some have not—a lot of that depends on fan perception and history turning a kind eye to their accomplishments. But being aggressive and being dirty can come from the same root mentality, so it's not totally out of the question to use the two words interchangeably in some places here.
Without further ado, here are 20 drivers who know how to use their cars to muscle their way to a victory.