The highway_45.challenge.gbx file you have requested: Maps Levels Missions / Tracks / Miscellaneous / G to H Titles / Highway 45 - 13.57kb 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:
Place the file in the documents folder under Trackmania/Tracks/Challenges/Download.To play the track turn on the game go to solo, then browse and find it. This fast-paced map is wide and open, allowing for maximum speed. Loops, flips, and obstacles are all over Highway 45 so players can't just rush through the map without some type of skill.