Thanks to everyone who has taken part in the survey, and also to this discussion. I'm not convinced by electric cars, but now that the main manufacturers are moving into the market (I think Audi just announced their first fully electric model is to be released soon), it could be that for all of Tesla's marketing they will just be swallowed up by the establishment ... especially when Merc/BMW announce they are phasing out Diesel (which can't be too long given the bad press).
It's all about critical mass and economies of scale, same as wind farms ... as soon as there is enough perceived demand, charging points (not free, nothing in life is free) will be springing up everywhere, and battery range will just get better. When the petrol engine first came out I can't imagine cars could go 500-600 miles on one tank.
If nobody objects I might copy this thread to the young 'un, he may fiind some of the comments useful.