All iPerformance models have an eDrive button, which allows the driver to choose between three different electric drive modes: AUTO eDrive (standard), MAX eDrive or SAVE BATTERY.
AUTO eDrive mode.
In this mode the car’s BMW EfficientDynamics system determines the most efficient combination of electric motor and engine, depending on the speed and the battery charging status. Abilities vary between models, but if the battery is moderately to fully charged, speeds of between 40-50mph can be driven purely electrically, free of local emissions and without using any fuel. At higher speeds or with more demanding requirements, the combustion engine switches on automatically. If the battery is down to approximately 10% charge, only gentle acceleration and low constant speeds in purely electric mode are possible.
MAX eDrive mode.
In the MAX eDrive mode, purely electric higher speeds of between 78-87mph, are possible, depending on the model and where permitted. At higher speeds or when the acceleration potential has been exhausted, the combustion engine switches on automatically.
SAVE BATTERY mode.
When the battery charging status is low, the SAVE BATTERY mode enables the battery to be charged by the combustion engine or allows the charging status to be maintained at 50%. This way, you can save battery capacity for purely electric driving later.
Enter the destination into the navigation system and predictive energy management analyses the planned route using data such as the speed limit and Real Time Traffic Information. It will then use the purely electric driving mode where it’s most efficient to do so - in urban traffic for example.