The most common argument that detractors of NASCAR make is that fitness is not required for success. The key to this revolves around Tony Stewart, whose expanding trophy case (three championships) has also come with an expanding waistline over the years.

Here's the quickest response to that: David Wells, Gilbert Brown, C.C. Sabathia, John Kruk, Prince Fielder, William "The Refrigerator" Perry, John Daly, Albert Haynesworth, Robert Traylor, George Foreman, Kyle Wellwood, Jared Lorenzen, Eddy Curry, James Toney, Eric "Butterbean" Esch, every sumo wrestler ever...