I'm not sure on what electronic vehicles actually do?
Carbon Dioxide and other things such as sulphur dioxide are released by the combustion of the fuel to make the car, so unless you fit it with solar panels (which are expensive and a 60kW solar panel is more expensive than some electric cars)!
Also, if you get a flat battery, you can't get it to start as easily, you either need a spare battery or another erson with a full battery to help you and destroy their battery in the process (over time)!
It's definitely imperfect, but electric vehicles are more fuel efficient to operate. Electric motors are far more efficient at power transmission than combustion engines (though rotary engines can come close), and even counting the cost of charging them, tend to consume less fuel than a traditional vehicle. It's not orders of magnitude better, it's at best an incremental improvement. But as interest grows, I think that power generation by less intrusive and more decentralized means will become more popular. I see them as a step in a positive direction, rather than a solution by themselves.
Also, most have things like regenerative braking that extends the battery charge cycle.
