I agree it's going to take "normal" cars powered by electricity to convince most people before oil runs out.
I was in London last week, and noticed an awful Gee Whiz plugged into a juice point in Covent Garden. Two charging related issues sprang out at me, firstly the cable was trailing (albeit a short distance) between the car and juice point, and secondly the amount of time it must take to charge one as it was plugged in for a long time, wireless (conduction?) charging/parking spots would seem to be a good idea.
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get an iphone not a life.