- Cruise control maintains speed, will automatically decelerate if a car in front slows down, speed back up if they speed or go away, etc.
- Collision avoidance: the car will automatically emergency brake if it believes a collision is imminent.
- Lanekeeping: the car will stay in the lane without driver attention, although if it doesn't detect your hands on the wheel with enough frequency, the system will disengage.
- The car can park itself.
A quick look at Wikipedia tells me it can also change lanes and be "summoned."
Most of these features, especially considering cruise control, collision avoidance, and lane-keeping as the core featureset, since at least in 2017, have been in wide deployment among most car manufacturers, down to even cheap economy cars, that people are buying right now without getting on waiting lists or anything of the kind. You can buy a car right now with this core featureset for around ~18k.
Not only that, people seem to dramatically overestimate what kind of auto-pilot Teslas have. Speaking with my doctor about it, he assured me that "you just tell the car where to go, and it goes there." How did Teslas get so hyped up in the common man's imagination?