Scott Dixon

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Top three finishers in the Kohler Grand Prix celebrate at the podium, from left, Josef Newgarden, second, Scott Dixon, first, and Helio Castroneves, third, Sunday, June 25, 2017, at Elkhart Lake's Road America in Elkhart Lake, Wis. (Gary C. Klein/The Post-Crescent via AP)

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From left, Ryan Briscoe, Scott Dixon, Tony Kanaan and Josef Newgarden sit on a barrier before driver introductions for the first race of the IndyCar Detroit Grand Prix auto racing doubleheader in Detroit, Saturday, May 31, 2014. (AP Photo/Carlos Osorio)

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Marco Andretti leads Scott Dixon, of New Zealand, through the first turn during the 98th running of the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 25, 2014. (AP Photo/Tom Strattman)

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Scott Dixon, of New Zealand, responds to a question during a media interview for the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Thursday, May 22, 2014. (AP Photo/Darron Cummings)

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FILE - In this April 30, 2014 file photo, Scott Dixon, of New Zealand, takes a turn during testing for the inaugural Grand Prix of Indianapolis auto race on the new road course at Indianapolis Motor Speedway in Indianapolis.While his team struggled with both setup and speed, Dixon has flown under the radar during preparations for the Indianapolis 500. It's exactly how he wants it, and how he's tried to be his entire career. (AP Photo/Michael Conroy, File)

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FILE - In this May 23, 2013 file photo, Scott Dixon, of New Zealand, responds to a question during a media interview for the Indianapolis 500 auto race at the Indianapolis Motor Speedway in Indianapolis. While his team struggled with both setup and speed, Dixon has flown under the radar during preparations for the Indianapolis 500. It's exactly how he wants it, and how he's tried to be his entire career.(AP Photo/Darron Cummings, File)