The spiral_sprint.challenge.gbx file you have requested: Tracks / Complex / Spiral Sprint - 16.6kb is not available. Perhaps try browsing all files for the game TrackMania Nations Forever and upload any files you want to share or are missing. This is the only information we could locate:
Its not that hard of a map but still pretty fun! Has many loops and alot of sudden turns but not much of a challenge but more like a map to enjoy not competitive or anything.