Actually the situation is even worse for electric vehicles.

A conventional petrol car generates its power using an internal combustion engine with a typical efficiency of 30-35%.

An electric car has the energy generated by a power station (Gas, Coal, Nuclear) using gas/steam turbines with a typical efficiency of 40-45%, the energy has to be either stored (almost impossible on a large scale) or the capacity of the electricity generation needs to radically increased to keep the peak energy demands covered. Once energy transmission and local storage is taken into account, electric powered vehicles are less efficient.

Wide scale use of electric vehicles is unfeasable because the overall energy consumption is even worse due to the unworkable problem of storing electricity on a large scale. Power stations cannot be turned on like light switches especially if they are coal or nuclear.

For a society to convert to electric vehicles then the number of new power stations required to provide the increased electricity demand would need to triple. i.e. for every power station currently used in the US, then another two would have to be constructed (one for the actual energy demand and one to handle the peak energy demand)

The idea for a personal electric powered vehicle car, which can compete with your current SUV is about as silly as one powered by biofuel.

An electric powered train system really only makes sense simply because they are so efficient.