i bought it yesterday off steam for my pc and just like dirt 2 its f**king epic if not its better than epic is more than epic.
cant comment on the xbox version but i think the only diffrence is the graphics as in the pc graphics are better as it uses directx11 as opposed to the xbox lame directx9.
if you liked dirt 2 youll love dirt 3 ;)
Many people rave about it. I am not big on Racing games but overall you can do MUCH worse. Lot's of people say it has good gameplay. The graphics are intense as hell so if you want a good racing game this isn't a bad choice...
Don't like it all that much.