I'm a bit tired of all these CO2 comparisons regarding electric vehicles. If we put the CO2 emissions aside, there are so many other benefits moving to EV's. Especially reduced local pollution in cities such as NOx, VOC and particulate emissions. Even if we just look at noise and easy maintenance, electric cars are clear winners. All this focus on CO2 just leads to a lot of inaccurate napkin calculations on one part of the issue, taking focus away from the bigger picture.

That being said, for cities, cars in general are problematic since the consume so much space. I'd say electric bicycles and public transportation is the way to go for cities.