Indianapolis Motor Speedway

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Kurt Busch drives out of the pit area during practice for the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Monday, May 19, 2014. (AP Photo/Michael Conroy)

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Kurt Busch stretches before the start of practice for the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Monday, May 19, 2014. (AP Photo/Michael Conroy)

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Ed Carpenter waves after winning the pole for the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 18, 2014. (AP Photo/Tom Strattman)

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Ed Carpenter displays the P1 award flag after winning the pole during qualifications for the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 18, 2014. (AP Photo/Michael Conroy)

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Ed Carpenter celebrates with his wife, Heather, after winning the pole during qualifications for the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 18, 2014. (AP Photo/Michael Conroy)

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Ed Carpenter celebrates after winning the pole during qualifications for the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 18, 2014. (AP Photo/Tom Strattman)

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Ed Carpenter celebrates after winning the pole during qualifications for the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 18, 2014. (AP Photo/Michael Conroy)

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Kurt Busch boards a helicopter to begin his trip to Charlotte for tonight's NASCAR race after he qualified on the first day of qualifications for Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Saturday, May 17, 2014. (AP Photo/Darron Cummings)