Automotive navigation systems using Global Positioning System (GPS) technology have been in use for around ten years, an adaptation of military technology for civilian use, to guide drivers.
Devices are typically attached to dashboards or the inside of windscreens of automobiles and display an electronic map along with audio from a voice narrator. The most well-known voice is that of Australian Karen Jacobsen. She tells people where to go!
Tomtom, a Dutch manufacturer of automative navigation devices, recently acquired different voices for use in its devices. From Yoda and Darth Vader.
It seemed both Yoda and Darth Vader had trouble keeping to the script during voice recordings.
Just as fun would be Mio's Knight Rider GPS.