Full Self-Driving Hardware can be found on All Cars of TESLA . All Tesla vehicles produced in factory, including Model 3, have the hardware needed for full self-driving capability at a safety level substantially greater than that of a human driver.
It has Eight surround cameras which provide 360 degrees of visibility around the car at up to 250 meters of range. Twelve updated ultrasonic sensors complement this vision, allowing for detection of both hard and soft objects at nearly twice the distance of the prior system.
Once on the freeway, this time Tesla will determine which lane you need to be in and when. In addition to ensuring you reach your intended exit, Autopilot will watch for opportunities to move to a faster lane when you're caught behind slower traffic. When you reach your exit, your Tesla will depart the freeway, slow down and transition control back to you.

Build upon Enhanced Autopilot and order Full Self-Driving Capability on your Tesla. This doubles the number of active cameras from four to eight, enabling full self-driving in almost all circumstances, at what we believe will be a probability of safety at least twice as good as the average human driver.
A forward-facing radar with enhanced processing provides additional data about the world on a redundant wavelength that is able to see through heavy rain, fog, dust and even the car ahead.
To make sense of all of this data, a new onboard computer with over 40 times the computing power of the previous generation runs the new Tesla-developed neural net for vision, sonar and radar processing software. Together, this system provides a view of the world that a driver alone cannot access, seeing in every direction simultaneously, and on wavelengths that go far beyond the human senses.


The system is actually designed to be able to conduct short and long distance trips with no action required by the person in the driver’s seat.
For Superchargers that have automatic charge connection enabled, you will not even need to plug in your vehicle.
SOURCE : TESLA
SOURCE : TESLA