Kyle Busch exits his car after finishing second to Brad Keselowski, doing a burnout at rear, in the NASCAR Nationwide Series auto race Saturday, March 8, 2014, in Las Vegas. (AP Photo/Isaac Brekken)
A spectator looks around as storm clouds move in for a rain-shortened NASCAR Nationwide auto race on Saturday, March 1, 2014, in Avondale, Ariz. Kyle Busch was declared the winner. (AP Photo/Ross D. Franklin)
Kyle Busch, right, passes Brad Keselowkski, left, going into the first turn during a NASCAR Nationwide auto race Saturday, March 1, 2014, in Avondale, Ariz. (AP Photo/Ross D. Franklin)
Kyle Busch poses for photographers with the winner's trophy after his victory in a rain-shortened NASCAR Nationwide auto race on Saturday, March 1, 2014, in Avondale, Ariz. (AP Photo/Ross D. Franklin)
Kyle Busch poses for photographers with the winner's trophy after his victory in a rain-shortened NASCAR Nationwide auto race on Saturday, March 1, 2014, in Avondale, Ariz. (AP Photo/Ross D. Franklin)
Kyle Busch poses for photographers after he won the rain-shortened NASCAR Nationwide Series auto race Saturday, March 1, 2014, in Avondale, Ariz. (AP Photo/Ross D. Franklin)
Kyle Busch poses for photographers with the winner's trophy after his victory in a rain-shortened NASCAR Nationwide auto race on Saturday, March 1, 2014, in Avondale, Ariz. (AP Photo/Ross D. Franklin)
Kyle Busch waits out a rain delay at his team stall on pit road during a NASCAR Nationwide auto race Saturday, March 1, 2014, in Avondale, Ariz. (AP Photo/Ross D. Franklin)