Three-time Indianapolis 500 driver Dario Franchitti will drive the pace car for this year's race.
Injuries from a crash at Houston forced Franchitti to retire from racing at the end of the 2013 season. He won his first Indianapolis 500 in 2007, then repeated the feat in 2010 and 2012.
Franchitti won the IndyCar Series Championship four times, in 2007 and from 2009-11.
This year's Indianapolis 500 will be run on May 25.