From Codemasters:

Monte Carlo Rally and other returning classic rally environments Germany and Sweden benefit from a significant visual uplift since the first DiRT Rally®. The new lighting system combined with improvements to the track materials, foliage and character models bring the locations to life even more – while the challenges of tyre choice, track degradation, updated handling physics, and the optional hardcore damage mode, all arriving to the franchise with DiRT Rally 2.0, provide a breadth of new ways to experience these iconic stages.

Awesome news: updated Dirt Rally tracks for the new game. Bring it on.