The mod doesn’t include any tracks, but the mod supports many tracks. This is used for the upgrades, which change automatically to the according upgrades.
Some reported “missing tracks”. Missing is relative, because we can’t know all tracknames that exist out there, so we already called twice to get lists of tracks, we should support and we do so know. This trackname will be added in the next version of the mod, which will be the last chance to add new tracks.