The idea of using a removable plug-in battery around town, then removing them for a long trip makes perfect sense. It is makes sense for urban commutes, but an unnecessary load for a longer drive. Also, some people would be driving in such a way the plug-in options would not benefit them that much.

61.5mpg lifetime - 82mpg in recent months

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www.cleanmpg.com

"fanatic" is what the lazy call the dedicated