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Margaret you've missed the obvious, most of us around here live in terraced houses, now most of us can never even park outside our own houses so how do we re-charge these cars without miles of extension leads criss-crossing the streets causing trip hazards for all.
Even if you could park outside your own house an extension of some form would still have to be used unless they finally get Nikola Tesla Mains electricity transmitters working I don't think they'll have that anytime soon and if they did we wouldn't need battery cars we could ride around as with dodgem cars picking power up straight from the grid.