Waymo is currently the only SAE Level 4[0] self-driving car in use, right? The wheel must not be used. Even though it is limited to two cities. Their technology seems an order of magnitude above the rest, although factoring in its cost could make it look worse. (Can it turn a profit, when including the development costs?) Tesla FSD is at best SAE level 3 (can need human fallback), and at worst level 2 (needs constant…
FSD is still technically level 2. In Tesla's eyes and the law's eyes you are driving and in liable for what happens.
As in, "This system is known to degrade in ways that require immediate human manual intervention under risk of serious injury or death. Do not operate it without constant driver supervision and preparation for takeover."