This circuits have been created using XtremeEd,
that is given on the Xtreme Data Disks.
This archive contents:
Indianapolis1: a circuit with an oval form.
Indianapolis2: a difficult circuit :).
In theory, this circuits should work with the basis
(the three first disks, and nothing else), but they
haven't been tested with this "small" configuration of
XtremeRacing

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  145     219  66.2% -lh5- f2f8 Jul  4  1997 indytracks/Installation.script
[generic]                 1381    2948  46.8% -lh5- 5269 Jul  3  1997 indytracks/Installation.script.info
[generic]                  517     900  57.4% -lh5- 75bc Jun 30  1997 indytracks/Layouts.info
[generic]                 5738   25600  22.4% -lh5- 2777 Apr 21  1997 indytracks/layouts/Indianapolis_1.raw
[generic]                11058   25600  43.2% -lh5- 12dd Apr 23  1997 indytracks/layouts/Indianapolis_2.raw
[generic]                  520     900  57.8% -lh5- b211 Jun 30  1997 indytracks/MyBestLaps.info
[generic]                  611    9728   6.3% -lh5- 3835 Jun 30  1997 indytracks/mybestlaps/.laptimes
[generic]                 1875    4319  43.4% -lh5- 4a3e Jul  4  1997 indytracks/Track.Readme
[generic]                  579    1544  37.5% -lh5- 6a17 Jul  1  1997 indytracks/Track.Readme.info
[generic]                  520     900  57.8% -lh5- fa27 Jun 30  1997 indytracks/Tracks.info
[generic]                 4956    5278  93.9% -lh5- c68d Apr 23  1997 indytracks/tracks/Indianapolis_1.Trk
[generic]                 9867   10162  97.1% -lh5- 66ec Apr 23  1997 indytracks/tracks/Indianapolis_2.Trk
[generic]                  520     900  57.8% -lh5- ebf1 Jun 30  1997 indytracks/Worlds.info
[generic]                14148   16000  88.4% -lh5- 2499 Apr 21  1997 indytracks/worlds/Indianapolis.raw
[generic]                  520     900  57.8% -lh5- 3d0f Jul  3  1997 IndyTracks.info
[generic]                  310     496  62.5% -lh5- 4f74 Jul  9  1997 IndyTracks.readme
[generic]                  318     851  37.4% -lh5- 8156 Jul  3  1997 IndyTracks.readme.info
[generic]                 3321    7713  43.1% -lh5- 6187 Jul  4  1997 indytracks/IndyTracks.guide
[generic]                 1775    2832  62.7% -lh5- 521e Jul  3  1997 indytracks/IndyTracks.guide.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        19 files   58679  117790  49.8%            Jul  9  1997