It is done right now. Not by big auto makers, but by alternative makers and by home made conversions. For example; in my country: http://www.ad-pecjak.si/ECO/Ecar1.htm I, for example, drive a Vectrix - electric maxi-scooter. Range is between 60-80km, which is more than enough for my daily commute. I recharge aprox. once every two days. And it's an USA company :-) Yes, electric vehicles are not for all climates. But why would that be a limitation in all other climates, where they 'feel' perfectly well.