This is by fat the best in the Colin McRae series with the inclusion of many different vehicles and racing modes.
The career mode is totally engaging and thankfully took me weeks to complete instead of ending after 2-3 days like most other campaigns/story modes. As you play, you climb a ladder of races which start out easy and get pregresively more difficult. Also, different races and vehicles are unlocked - one race you could be driving a big-rig, the next a citroen C4 rally car. The best thing about the races is the amazing car models (which damage superbly) as well as the tracks themselves which look very lifelike.
There is multiplayer in this title which is OK but nothing to shout about which is the only reason why it didn't get 10/10 from me. Congratulations Codemasters!