As part of the cascade of driver moves that will follow Alonso's switch, BMW Sauber's Robert Kubica is understood to have signed a contract to replace Alonso at Renault.
Where cities have pollution restrictions, for example, a driver could elect to drive purely on the battery, or to switch to that quieter mode in a school zone.
When the vehicle is in reverse-mode, the SmartGPS will automatically switch from navigation mode to become a rear-view monitor that allows the driver to see what is behind the vehicle including children, pets and toys, or for assistance when parking into a tight parking space.