Point 2 isn't really that big of a deal, unless you're using old flooded-cell lead-acid batteries. Newer lead-acid batteries have the electrolyte absorbed in fi

Point 2 isn't really that big of a deal, unless you're using old flooded-cell lead-acid batteries. Newer lead-acid batteries have the electrolyte absorbed in fiberglass mats, so it won't spill or splash, even in a collision. An lithium-ion electrolyte is about as harmful in terms of skin and eye contact as petroleum fuels, except that it won't catch fire nearly as readily. All in all liquid fuels are much more hazardous than batteries. In an alternate reality where electric cars were the norm, I doubt you could get a liquid-fueled car past the safety regulators. Point 6 is a valid question. An electric car is still a car, and comes with all the negative externalities of a car, with the exception of local air pollution and petroleum dependence. Greenhouse-gas-wise, they are somewhere between "about the same" and "much much better" than internal combustion powered cars, depending on your assumptions.