Nitro Stunt Racing will receive a new track along with a beta version of the multiplayer addon. Both packages will be free for all Stage1 users. For more details about the game see the preview here.

"Prepare yourself for a hard fighting on the "Twisted Iron", a course made of high speed tubes. We will release this track with the beta multiplayer addon. It will be available soon for free for all stage 1 players."

See the screenshots here. The game is available through online distribution since 28th December 2007.