The power_run.challenge.gbx file you have requested: Maps Levels Missions / Tracks / Coast / Power Run - 14.53kb 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 New Coast track - the same style as JOYRIDE. Have fun!