Here is a list of the historic cars expected to run Race morning. The laps begin at 10:54 ET.
1974 McLaren M16C
1974 Oldsmobile Hurst/Olds Pace Car
2003 Penske Panoz G GForce/Toyota
1954 Dean Van Lines Special Kuzma
1973 Sugar Ripe Prune Special Eagle
1964 Sheraton Thompson Special Watson
1934 Cummins Engine Special
1939 Boyle Special Maserati 8 CTF
1968 Lotus Powered by Ford Type 29
1914 Delage
1909 Buick
Simon Pagenaud will drive the 2003 Panoz in which Gil de Ferran won the race.
The 1939 Boyle Special is arguably the greatest car in Speedway history, with two wins and three other top 5 finishes.
From earlier
108th Running of the Indianapolis 500 Race Preview
Winners
IMS has awarded blue jackets to all the living winners of the Indianapolis 500.
I believe this is the largest group of living former winners in history, thanks to safety advances.