3 month ago, I have published a story about MWI (MouseWheelInput) and it's new extender the ccStick - a CarPC input device based on the Audi Joystick.
Now, 3 month later I may point you to the new and enhanced tool called ccStick iD, which bases on the same interface but has turned out to be much more versatile (and fancy).
The appendix "iD" stands for iDrive - which is a groundbreaking concept from BMW, introduced in their BMW 7 series a couple of years ago. Since then, CarPC users were eager to adapt this concept in their cars.
The ccStick iD is a huge step in this direction. It combines a rotary encoder with an 8 direction joystick.
The new ccStick concept makes it very easy to attach this encoder to your CarPC and process the messages sent in a comfortable and easy way using MWI.
To watch the ccStick iD in action you may check out this litte movie (please, don't take it too serious ;))