The highway_17.challenge.gbx file you have requested: Maps Levels Missions / Tracks / Miscellaneous / G to H Titles / Highway 17 (V1) - 20.41kb 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. For more information on TrackMania Nations, visit This is a remake of the Half-Life 2 level, Highway 17.