Tony Stewart wins at Las Vegas
Kobalt Tools 400
Credit: Getty Images
LAS VEGAS, NV - MARCH 11: Honorary grand marshal Tim Allen (C), gives the command for "Gentlemen, Start Your Engines? prior to the start of the NASCAR Sprint Cup Series Kobalt Tools 400 at Las Vegas Motor Speedway on March 11, 2012 in Las Vegas, Nevada. (Photo by Tom Pennington/Getty Images)
