1) An option for center spring for steering wheels would be great.
As it is now I have to go to Configuration -> Advanced -Inputs tab and uncheck Activate Rumble. In other words I have to choose between Rumble and the wheel's default Center spring.
2) The seperate axis problem would also be a good feature. I can live without it though. I've written a script in GlovePie that translates the pedals' seperate axis to digital keypresses. So I even have quite good analogue gas and break which the game doesn't natively support. Sweet

Those of you who don't want to go through the trouble of getting a script to work can just download joy2key and map the seperate axis pedals to keyboard presses.
Please seriously consider adding center spring support for the steering wheels so we can have both rumble and center spring in game. Even the simplest implementation would be a great help. The spring doesn't even have to increase in strength with the car's speed.