The annual electric cost using 12 cents a kilowatt-hour for the label is $561, a number far below those of the most fuel efficient gasoline powered cars or hybrids.

This calculation is based on the EPA’s formula of 33.7 kW-hrs being equivalent to one gallon of gasoline energy, and does not take into account how the electricity is generated. In addition, the label displays a charging time of seven hours using a 240-volt charger that can cost as much as $4,000 to buy and install in a home, and a driving range of 73 miles, based on five cycle tests that employ varying conditions and climate control settings.

Your mileage may almost certainly vary.