RE: Tesla's Model S will go 300 miles and cost $77,400
A couple of other thoughts on this. . . . I would guess that the batteries are lithium, or some other heavy metal. . . what about the environmental and "hazardous materials" impact with battery changes, accidents, etc., and the environmental impact of making the batteries in the first place. . .
Also, I keep hearing about the cost of gasoline, but no one mentions that a significant portion of that is in road taxes (one form or another), yet, for some reason, there is no "road tax" on electricity. . . but you can rest assured that soon the "gumment" is going to figure out that this is happening and they'll start adding it to electricity, one way or another. And, if anyone says the road taxes aren't siginficant then there wouldn't be such a heavy fine for people using gas, diesel, for farm or industrial (non-road use) -- I believe that they run in the range of $5000 if you get caught.