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
The official test figure is shown, but this is likely to differ in real life driving due to hills, load, driving style and air temperature. Most manufacturers provide the Equivalent All Electric Range (EAER) which can be greater than the All Electric Range (AER). The AER is the distance before the internal combustion engine (ICE) kicks in, whereas the EAER also adds in a calculation of the battery contribution to the distance covered when both the electric and ICE motors are running together.
kWh to Charge Battery
Kilowatt-hour required to charge battery to 100%. 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 Weighted Combined MPG (WCMPG) is the official fuel consumption figure derived from the WLTP tests and is based mainly on electric driving with only a small distance on fuel. The resulting figure is intended to be indicative of how the vehicle will be used, but cannot be used to compare against other vehicles unless they have the same battery range.
CS Mode
This estimates the distance coverable on a gallon of liquid fuel alone. It may be similar to an equivalent petrol or diesel vehicle but could be worse because of the additional weight of the electric drive components or better due to the use of lightweighting and other measures. The CS mode includes variable utility factors but can be roughly calculated by the formula:
CSmode MPG = WCMPG x
14.125 - (Battery Range x 0.1316) / Battery Range + 14.125 - (Battery Range x 0.1316)