Hello,
If you use a wheel with less than 900 degrees rotation (for example - 270 or 180 degrees), you should follow recomendations below.
Go to the "Settings" menu, open the "Control" tab and select the "general" item in the drop-down list. Then tune options in the way described below:
1. Slider "wheel linearity" set to the minimum value.
2. Slider "wheel dead zone" set to the value a bit higher than minimum.
This will make car controlling easier. However we recommend wheels with 900 degrees rotation for maximum comfortable gameplay. Logitech G25/G27 is recommended but not necessary. There're other wheels with 900 degrees rotation which costs cheaper, for example - Logitech Driving Force GT.