My thoughts on the actual game itself are really good!
I thought I'd dislike the non-rally events, but the buggies and trucks are much more fun in the new environments, and the gymkhana events are actually quite enjoyable. Now just need to platinum them all! Remind me of the fun bits out of gran turismo.
The car handling is better than DiRT 2, more realistic and the difference between each vehicle is more pronounced. RWD cars feel like RWD etc. The graphics are better than DiRT 2 as well, by a small, but definite margin. Weather effects and snow (finally!) are very welcome additions, so are the variety of cars. They should have ported the tracks from DiRT (including pikes peak) and even DiRT 2 into this game for more value, even if they're not the same detail, it'd give a lot more depth to the game and a lot more reason to come back to it. Just my thoughts, but there's just as much to keep me playing here as there was in DiRT 2.