Doing some research.
From what I've gathered, there was no force feedback support on the Dreamcast at all.
Did any of the Dreamcast wheels have rumble?
If there was no FFB, then is the wheel just a reconfigured controller with the x-axis potentiometer connected to a wheel instead of a joystick?
On the back of some games, it says they're compatible with the wheel.
Does that mean the game actually senses it's connected to a wheel and behaves any differently?