The event does not exist.
This site caches most of the data it is supposed to display. If there were any significant changes in the game (clearing leaderboards, adding or removing tracks or vehicles), the cached data may take about half an hour to mirror the changes made in the game. Until the mirroring is fully finished, this site may contains links to outdated information, like vehicles that no longer exist, and which will be automatically corrected after a while.
If the problem persists for a longer period of time, please let us know via the game forum.