[nathan_long]

I don't want a touch screen OR voice controls. I want knobs and buttons.

I can use a physical control without looking. It isn't confused by wind noise if my window is down. It doesn't bother a sleeping passenger.

The only disadvantage to physical controls is mapping them to an ever-larger number of functions. The early iPods did that well with their scroll wheels and single button, but there are limits.

Then again, maybe the large number of functions is the problem, not the controls.