When I realize the car or truck ahead of me is emitting something I don't want to breathe (either because I see it coming out the tailpipe, or because I start to smell it), I want to switch to recirculation RIGHT NOW, not after I navigate through a maze of menus that require me to take my attention away from driving.

Also, I want temperature regulation based on how hot or cold I feel, not what some thermometer says (and often have different opinions about where the air should be blowing depending on how I feel).