Carbon uses steering wheel says IGN

[RedSteel91]

Enough about the basics though. There's one thing Wii gamers want to know, and that's how the controller makes or breaks the Carbon experience. Despite our initial impressions, the final version actually has a solid feel, and we'd go as far as to say the actual steering control trumps analog input after just a few minutes of practice. Included on Carbon Wii is the ability to play using either a single Wii-mote in the classic Excite Truck position, or team it up with a nunchuk controller for a more traditional analog experience. When using the Wii-mote exclusively, the control can be done by either tilting like in Tony Hawk, or by twisting like GT Pro Series or Monster 4X4. We had overall better luck with tilting the controller, but putting the Wii-mote into the Ubisoft racing wheel worked just fine as well. Included in Wii-mote control are three basic sensitivity choices, as well as "Oversteer" which essentially adds tighter steering on the fly by holding the A button during a race. If you chose the nunchuk control methods they revolve around turning the Wii-mote into an analog gas/break "stick", and while it works to a certain extent there's really no beating the classic Wii-mote control for Carbon.

Source www.uk.wii.ign.com