FILE - In this Oct. 5, 2013, file photo, Scott Dixon, of New Zealand, celebrates after winning the first IndyCar Grand Prix of Houston auto race in Houston. Much has changed since Dixon wrapped up his third IndyCar championship five months ago. He's got a new engine manufacturer in Chevrolet, and longtime teammate Dario Franchitti has retired and been replaced by Target Chip Ganassi Racing with Indianapolis 500 winner Tony Kanaan. (AP Photo/David J. Phillip, File)
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