2008 Indianapolis 500 ... the number is 39 !!! minimum
http://www.indystar.com/apps/pbcs.dl.../1052/SPORTS01
Andretti Green -
4 cars FIRM, 1 for Matos potentially = 5
Penske Racing -
2 cars FIRM - 1 for Hornish Jr. potentially = 3
Target Chip Ganassi Racing -
2 cars FIRM - 1 for Lloyd potentially in partnership with RLR = 3
Rahal Letterman Racing -
1 car FIRM - 1 car potentially for Lloyd with TCGR = 1
Vision Racing -
2 cars FIRM - 1 car potentially for Tracy = 3
Dreyer and Reinbold -
2 cars FIRM = 2
Panther Racing
1 car FIRM - 1 for TBA potentially = 2
A.J. Foyt Racing -
1 car FIRM - 1 car for TBA potentially = 2
Newman Haas Lanigan -
2 cars FIRM = 2
Dale Coyne -
2 cars FIRM = 2
Conquest Racing -
2 cars FIRM = 2
HVM Racing -
1 car FIRM - 1 for TBA potentially = 2
KV Racing Technology -
2 cars FIRM = 2
Sarah Fisher Racing -
1 car FIRM - 1 for TBA potentially - 2
Luczo Dragon Racing -
1 car FIRM = 1
Rubicon Racing -
1 car FIRM = 1
Beck Motorsports -
1 car FIRM = 1
Playa del Racing -
1 car FIRM = 1
Roth Racing -
2 cars FIRM - 1 for TBA potentially = 3
That's 40 by my count and that doesn't include wild cards from Forsythe, Red Bull, PCM, Rocketsports etc etc. all rumored to be in the mix.