Automakers and their suppliers are working on a variety of driver-identification technologies such as facial and iris scans, as well as voice and fingerprint tracking.

• They would enable a driver to start the engine without a key and the car would automatically adjust the seats, mirrors, climate and audio settings.
• The car could then also communicate with home automation systems, turning on lights or opening the garage, for example, and automatically pay for tolls, parking or gas.
• For AVs and car-sharing apps, ID verification is important to ensure passengers get into the right vehicle and are who they say they are.

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http://www.newworldencyclopedia.org/entry/Automobile