Hybrids are probably the only deal.  Drive it until the batteries wind down and the gas or diesel engine kicks in and you go again.  The problem with the pure electric, with, say, a 70 mile range.  Well, what if you drive 40 miles to work.  You need a place to plug it in to get home.   That's a lot of infrastructure to be built.  Then, say, what if you need to run errands after work, go 10 miles the other way, and 10 miles another way, and it's very hot, or very cold.  All of a sudden you can't make it home.  You'd be way better off with a little Chevy Aveo getting 38 mpg or whatever.  Electric cars haven't been practical for a hundred years, they aren't practical now, and probably won't ever really be.