These are steps in the right direction: away from dependence upon countries that hate us for our means of transportation. The technology is developing. Now it has to be recharged. As things develop, they may not have to be in the future. Who knows? The point is, progress is being made towards the day when we can tell the Chavezs, Putins and Ahmedinijads of the world to shove their oil up the first convenient bodily orifice of theirs that is convenient.
This is not a replacement for oil. It isn’t practical or convenient enough to replace oil ... and, the energy to recharge these cars has to come from somewhere.
We won’t depend on Chavez or Ahmedinijad after we overthrow them either. The problem isn’t the oil, its the dictators.
H