Concord

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Jamie McMurray (1) takes the checkered flag to win the NASCAR Sprint All-Star auto race at Charlotte Motor Speedway in Concord, N.C., Saturday, May 17, 2014. (AP Photo/Gerry Broome)

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Jamie McMurray (1) does a burnout following his victory in the NASCAR Sprint All-Star auto race at Charlotte Motor Speedway in Concord, N.C., Saturday, May 17, 2014. (AP Photo/Gerry Broome)

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Kurt Busch is introduced before the NASCAR Sprint All-Star auto race at Charlotte Motor Speedway in Concord, N.C., Saturday, May 17, 2014. (AP Photo/Chuck Burton)

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Cars line up along the front stretch before the NASCAR Sprint All-Star auto race at Charlotte Motor Speedway in Concord, N.C., Saturday, May 17, 2014. (AP Photo/Gerry Broome)

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Smoke and flames come from Jeff Gordon's car after a collision with Martin Truex Jr. (78) during the NASCAR Sprint All-Star auto race at Charlotte Motor Speedway in Concord, N.C., Saturday, May 17, 2014. (AP Photo/Gerry Broome)

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A safety crew worker chases Kyle Busch along the speedway apron after Busch crashed in Turn 3 during the NASCAR Sprint All-Star auto race, as Martin Truex Jr. (78) drives by at Charlotte Motor Speedway in Concord, N.C., Saturday, May 17, 2014. (AP Photo/Gerry Broome)