Total Immersion Racing was released for the Mac OS X by Feral Interactive in 2003.

Career: Start in a low power GT car and rise through the ranks to win the PRO category championship and unlock cars and tracks.

With each race the player accumulates points for their finishing position (10 for a win), which contribute to a championship score.

The challenges may be one-car specific or may allow the choice of several or all cars from a single class.

Completing challenges unlocks cars and tracks for use in single and multi-player as well a time trial use.