For the Like the Wind Indy race, and the American Indy race (American is better $97,000 prize) the race modified Corvette is the best by far because its top speed is much akin to the LMPs and whatnot, and can carry more speed into the corners than the AI (~195 w/o any aids, ~203 w/ t/c) For the actual Indy 500 I ran the MINOLTA on RH tires (40.*** consistently) and won by 9 laps overall. It is kinda fun, and I did this on one stint in that race, to put on RS tires, and turn on the t/c so you can literally floor it the whole way around. I wanna say my best doing that was with a draft, and wound up at like 37.500 or so.