A vehicular navigation system includes a vehicle having a global-positioning system receiver operable to receive signals from satellites external to the vehicle in order to establish its geographic position. A transceiver is operable to engage in a wireless communication with a remote service provider. The transceiver is operable to receive a wireless data transmission from the remote service provider of data derived from a database accessible to a remote operator associated with the remote service provider. A voice input device is used by the driver to talk with the remote operator to input to the remote operator a destination. Responsive to input of the destination, driving instructions from the then present geographical location of the vehicle to the destination are wirelessly downloaded to the vehicle, A display viewable to the driver displays turn-by-turn instructions to the destination during the road journey that are based on the downloaded directions.