Quote:

I've always had a hard time seeing how surround could be implemented in a car; I mean, no one's going to be in the sweet spot other than the kid in the middle seat in the back, right?

Well yes and no, the decent aftermarket stuff has time correction just like our home gear. The big boys do pretty well at getting 2 ch right with thoughtfull speaker placement and room treatments (no kidding). Really, with time correction and the ability to calibrate levels- basic features on home gear, I think it could be pretty special.
One of these days I'm gonna hook my sms-1 up to my car system and see what I can do.