For those unaware:
- Level 0: No automation
- Level 1: Driver assistance (Assisting steering or braking)
- Level 2: Partial automation (Assisting steering AND braking)
- Level 3: Conditional automation (Human supervised autonomy)
- Level 4: High automation (Full automation in ideal environments)
- Level 5: Full automation
I believe we're currently at Level 2-3.
More details here: https://www.howtogeek.com/401759/WHAT-ARE-THE-DIFFERENT-SELF...
If someone with more knowledge wants to correct me on the levels, feel free.
The levels are technical distinctions in a roadmap towards "self driving cars", which by any reasonable definition are Level 4 and 5.
Below that it is marketing for advanced cruise control features (level 1 and 2), or dangerous (level 3).