Plug-in Hybrids and Extended Range Electric vehicles

Scroll left and right to view the full table including links to actions for a vehicle. Click on the i buttons in column headers for a brief explanation of the data.

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Explanation and use of above terms:

Battery Range
Under official tests, the vehicle is tested under good conditions to see how far it will run.
kWh to Charge Battery
We can calculate the cost per mile under electric power if we know the battery range and the amount and cost of the electricty used to recharge the battery. There is a loss of energy when recharging and this should still be included in the cost per mile calculation. We are working with manufacturers to provide this information, but in some cases have had to make an estimate based on the official battery capacity.
Weighted Combined MPG
The vehicle is tested under electric power (Condition A) and then when the battery is depleted (Condition B). The figures are then averaged out over a test cycle of the battery range plus 16 miles. The resulting figure is intended to be appropriate to the use of the vehicle, but cannot be compared to other vehicles unless they have the same battery range.
Condition B MPG
This measures the distance achieved under Condition B test conditions on liquid fuel alone (electricity is not considered a fuel anyway because it is not burnt). The Condition B MPG (CBMPG) will be similar to the equivalent petrol or diesel vehicle. Sometimes it will be worse because of the additional weight of the electric drive components, and at other times will be better because of lightweighting and other measures applied. The CBMPG can be calculated roughly by the formula:

\text{CBMPG} = \text{WCMPG} \times \frac{16}{\text{Battery Range} + 16}