If you are running an original disc or an older digital copy that still requires GFWL, the game often refuses to save because it cannot sign into a dead service.
Modern Windows security often prevents Dirt 3 from writing save files to your Documents folder. Steam Community Disable Controlled Folder Access Windows Security Virus & threat protection Manage settings Manage Controlled folder access Either turn it Allow an app through Controlled folder access dirt3_game.exe from your installation folder. Add Folder Exclusion : Under the same "Virus & threat protection" menu, go to Add or remove exclusions and add the entire
