Battery capacity will reduce over time, with use and charging. Reduction in battery capacity will affect the performance of the vehicle, including the range achievable, and may impact resale value. New car performance figures (including battery capacity and range) may be provided for the purposes of comparison between vehicles. You should not rely on new car performance figures (including battery capacity and range), in relation to used vehicles with older batteries, as they will not reflect used vehicle performance in the real world. Figures shown are official test values for comparability purposes; only compare electric range figures with other vehicles tested to the same technical procedures. These figures may not reflect real life driving results, which will depend upon a number of factors including but not limited to factory fitted options, accessories fitted (post-registration), variations in weather, road and traffic conditions, individual driving styles, vehicle load, vehicle condition and use of systems.