Pete,
I agree with you, low emmision cars would be the best of both worlds, and yes I breathe the same polluted air everyone else does. When I see a car going down the road that looks like it's on fire it turns my stomach.
We are on the same page I think. But remember that the oil companies will never release their death grip on the American consumer anytime in the forseeable future. This is way off topic so I will just say that it's not your or my responsibility alone to rid the world of vehicle pollutions, it definitely calls for a group effort.
-BT