Which autonomous vehicle company first introduced an external LED display panel specifically designed to communicate the vehicle's intentions to pedestrians and cyclists?

The transportation industry is rapidly evolving with autonomous vehicle technology transforming how products are designed. From safety features to user interfaces, self-driving vehicles require radical rethinking of traditional automotive design principles. This poll tests your knowledge about a groundbreaking product design innovation that changed how autonomous vehicles interact with pedestrians.

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Waymo, with its 'Pedestrian Interface' lightbar system (2019)
Tesla, with its 'SmartPath' external notification system (2020)
Cruise, with its 'Street Signal' communication array (2018)
Zoox, with its 'Urban Language' display technology (2021)