The Mac port of Dirt 2 was handled by , a master of Mac and Linux ports. They sold the game digitally via the Feral Store and physically via DVD-ROM. Unfortunately, Feral officially delisted Dirt 2 from its store several years ago due to expiring licensing agreements (mostly related to the music soundtrack and car manufacturers).
If you have already purchased the game or are looking to activate a legitimate copy, follow the instructions below. Locating Your Product Key dirt 2 product key mac