Every new Tesla (including the Model 3) comes equipped with the hardware required for AutoPilot, Tesla‘s adaptive cruise control system which eventually hopes to support fully autonomous driving.
source/image(PrtSc): Engineering Explained
However, if you wish to use the features, you’ll need to pay $5,000 to activate when you buy the car new, or $7,000 if you decide to purchase it later on.Watch the video from Engineering Explained for more info:
What’s the hardware used to support autopilot? How do you use it? Is the feature worth $5,000? This video seeks to explain how the system works, how to use it, and whether or not it makes sense for you as a consumer to purchase.
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AutoPilot currently uses 8 cameras, 12 ultrasonic sensors, and a forward facing radar in order to adjust speed based on the surrounding scenario, keep the vehicle with the lane, and even change lanes when the driver uses their turn signal.