Actually, the cost of the fuel itself is slightly cheaper in the UK because they've got a lower delivery cost (smaller country, shorter pipelines & tanker truck

Actually, the cost of the fuel itself is slightly cheaper in the UK because they've got a lower delivery cost (smaller country, shorter pipelines & tanker truck routes). The difference is, of course, taxes. There are proposals in the US to change how states collect tax from cars if electric vehicles gain widespread adoption. Currently the highway trust fund gets most of it's money from the motor-fuels tax and that will dry up. Mileage-based taxation is being looked at, where your odometer reading would be collected via the OBD-II port.