Here is Indianapolis speedway for GSC, Cart version.
Credits to RacerAlex I could not contact (no mail, no link...).
He did a nice pdf presentation of the track.
Well, very old track but I did my best to update it. Some things would deserve a deeper update but unfortunately it is not possible.
It is already ok in the trackbase.ini for the chassis.
Thanks to denis for loading screen and minimap.
Indianapolis Speedway (CART 1998) 2.0
Indianapolis for GSCEx