The downtown_rampage.challenge.gbx file you have requested: Maps Levels Missions / Tracks / Bay / DownTown Rampage - 8.47kb is not available. Perhaps try browsing all files for the game TrackMania: Sunrise and upload any files you want to share or are missing. This is the only information we could locate:
Gecko! created a track that requires speed and skill. This track was made with the snow mod for bay but it still works on the normal mod.