UN Environment Program Director Achim Steiner said: Our system of transportation — in which everyone drives their own car — doesn’t fit the times we live in, and isn’t going to work in developing countries. The car, along with buses, trains and subways, is going to be just one part of a network of transportation systems.

You may read the whole article here: http://www.spiegel.de/international/world/0,1518,593680,00.html

Epicurus thought that it was more important whom you ate with than what you ate. Mutatis mutandis we could say that it is – well if not more, but at least just as important whom you travel with as where you travel to: travel companions head for the same destination, e.g. stress-FREEDOM. The most sustainable vehicle would be of course reflection and friendly discussions, using ecological enological fuels.