Gil de Ferran, 2003 Indy 500 winner, dead at 56 after having a heart attack while racing with his son in Florida as tributes pour in: 'He defined class as a driver and as a gentleman'

Gil de Ferran, the 2003 Indianapolis 500 winner and holder of the closed-course land speed record, died Friday while racing with his son at The Concourse Club in Florida, at age 56.