The hangar_17.challenge.gbx file you have requested: Maps Levels Missions / Tracks / Coast / Hangar 17 - 9.78kb 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:
For more information on TrackMania Sunrise, visit Trackmania.filefront.com 17 seconds PF followed by about 30 seconds of high-precision driving: one U turn, two 90 left turns, one chicane and a dodge. Try it!