10 years worth of new technology, car electronics, miniaturization... what would be cool to have for ICE?

1) Each person could have a bluetooth earpiece streaming different audio rather than fight over the remote.
2) Throw video in there too... each of the passengers gets a video screen and can watch their own video stream with TiVo like controls. Wireless networking will have advanced enough that you can get your live video from home or direct from satellite.
3) Automatically switch to live radio when one of your keywords comes up or when an emergency broadcast is sent out.
4) Integrate with nav system:
a) GPS system gets real-time updates of contruction zones, lane closures, accidents and traffic jams.
b) Voice recog. "Car: I'm going to the grocery store". It may reply with "Take Duddly Rd because there's construction on your normal route".
c) When approaching an intersection, if you signal, it tells the traffic light which way you're turning. This helps optimize traffic flow in certain situations (e.g. you're turing right on red and there isn't much cross-traffic, the light knows that it doesn't need to change to give you the green).
d) As you approach your house, the garage door opens.
5) When your cell phone rings, it tells you (verbally) who's calling. You can respond verbally and tell it to answer, ignore, take a message, etc.
6) It has a combo IR/weight sensor (or something better) and learns each person's prefs. Then based on who's in the car, it picks the right Wendy Filter.
7) It can hear that you're straining to have a conversation with your passenger and automatically lowers the volume a bit.
8) The transmitter at the drive-up (bank, fast food, pharmacy, etc) tells it to lower the volume or pause (at the user's pref - or automatically quieter for music and paused for books on tape).
9) Auto-pauses when your car is out of control or in an accident.
10) OBD-IV connection detects a leaky tire and uses GPS to give you directions to nearest tire shop.