PonyKart is an upcoming 3D racing game created by several artists, animators, musicians and modelers. Being fan-made, this game is neither licensed nor endorsed by Hasbro.
After a year with no updates, PonyKart was announced to be officially cancelled by the development team due to the overwhelming development process and dwindling spare time to work on the game. The game's source code has since been made publicly available.
The project has then been revived with a new development team, lead by RavenSteam and grturner, to pick up where the other team left off. It is open source on GitHub.