Heres what i run:
STEERING DEADZONE: 3% (mimicing the real car wheel)
STEERING sATURATION: 50%
STEERING LINEARITY: 50%
THROTLE DEAZONE: 0%
THROTLE SATURATION: 0%
BRAKE DEADZONE: 2% (till they fix the slipstream glitch, if they fix it)
BRAKE SATURATION: 0%
FFB: On
ENVIROMENTAL: 30%
STRENGTH: 20%
WEIGHT: 50%