Trond's letter raises some interesting questions. Last night I was thinking about the whole question of cars in 2 contexts. I have a 78 year old mother who I just bought a new car for, a snazzy little Mercury Mystique. Her driving is not what it used to be, but there simply is no way for her to get around in the rural part of upstate NY she lives in.
There would be a role for cars in postcapitalist society, I'm quite sure. In rural areas like she lives in, the only sensible economic approach is private automobiles. Since there are so few people living in isolated farming communities, this would not present an environmental problem.
For the urban population, cars would be available for pleasure but on a strictly rationed basis. A worldwide socialist planning board would calculate how many cars would be ecologically sustainable and we would be entitled to a certain number of credit miles that you would use annually until they were exhausted. So, if you had 200 hours available, you would use them for vacations rather than driving up and down the freeways aimlessly like bored teenagers or LM supporters like Russell Pearson and James Heartfield.
Louis Proyect
(http://www.panix.com/~lnp3/marxism.html)