RE: Tesla's Model S will go 300 miles and cost $77,400
The real problem is even if electric cars became affortable, and everyone could get one, the U.S electric grid could not handle it.
They expect that there will be power outages in the U.S in 5-10 years if we don't build another nuclear power plant. Add 50-100 million people driving electric cars and that will be more like 2-4 years if not less.
Sure we could build more nuclear power plants but that just adds more problems than it is fixing.