Having been working on my own diesel fuel efficiency, I was interested to see this advert which suggests an electric car can be charged for £10. That would buy me 6.45 litres of diesel or 1.42 gallons. At 70 miles to the gallon, that's 100 miles. Electric cars of similar size to my car seem to have nameplate ranges of 200 miles on a full charge so this charging overnight scheme might be cheaper even accounting for the actual range of the electric car being less. 200 miles would not have got us to the south without an expensive and time consuming motorway service station charge, though.