Driver Ed Carpenter waits in the pit area during a rain delay for the start of practice for Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Friday, May 16, 2014. (AP Photo/Darron Cummings)
Driver James Hinchcliffe, of Canada, climbs into his car during practice for Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Friday, May 16, 2014. (AP Photo/AJ Mast)
Driver Juan Pablo Montoya, of Colombia, and his car is covered with a tarp and an umbrella as rain halted practice for Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Friday, May 16, 2014. (AP Photo/AJ Mast)
Driver Will Power, of Australia, prepares to drive during practice for Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Friday, May 16, 2014. (AP Photo/Darron Cummings)
The crew of Tony Kanaan, of Brazil, pushes the car back to the garage area as rain halted practice for Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Friday, May 16, 2014. (AP Photo/Darron Cummings)