Three-time Indy 500 winner Helio Castroneves, preparing for his first Indy as a part-time IndyCar driver, admitted learning the new-for-2018 aerokit has been difficult although he says the team has been a big help in the transition. Castroneves was switched to Penske’s IMSA WeatherTech SportsCar Championship program with the Acura ARX-05 this season, but has been  brought back to race a fourth IndyCar for the Grand Prix (in which he finished sixth) and the 102nd running of the Indy 500. He said that the series switch from manufacturer aerokits to spec Dallara kits had made IndyCars more demanding. “At this point the car is different, no question, compared to last year,” he said....
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