Which innovative hardware change did Tesla implement in 2016 that dramatically improved their Autopilot system's capabilities?

Tesla's Autopilot technology represents one of the most significant advancements in transportation technology in recent years. This autonomous driving system has evolved through various iterations, each bringing new capabilities to Tesla vehicles. Test your knowledge about this cutting-edge transportation technology that's reshaping how we think about mobility, safety, and the future of driving.

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Switched from radar-based to a vision-based system using cameras
Added 8 cameras, 12 ultrasonic sensors, and forward-facing radar (Hardware 2.0)
Introduced LiDAR sensors for enhanced depth perception
Implemented satellite connectivity for real-time traffic mapping