I decided to try the demo because my little cousin might like it (or me too, who knows?) but it doesn't recognize my TM 430 Wheel. I just have the option for 'Keyboard' under controls.
I reinstalled Dirt 2 and went through all the unskippable menus (I forgot how tedious that was) and the Options->Controls worked just fine, was driving right away.
Not sure why the 'Codemasters' can't get into 'coding' one of the more popular low-budget wheel setups. I remember this being an issue in Dirt 3 except I did get it working but it would ignore wheel input once in awhile for a few seconds. Not sure if they ever resolved that but I never bothered buying it. Dirt 2 is fun though, played it for a few hours.
I agree, RBR is great, I wish Dirt 2 had evelved into that. One game I never see mentioned which I love is TOCA3. It tries to be a jack of all trades yet is successful at most of them, except the rally part.