[Sohcahtoa82]

You only "have" to monitor Tesla's AP for liability purposes.

If the only difference between Level 2 and Level 3 is whether or not you have to monitor it, then I think its just market buzz, and Mercedes will kill someone because they'll claim that their system didn't need to be monitored, so someone won't, and it will make a mistake and someone will die.

Limited to 37 mph with the claim you don't need to monitor it means someone is going to be in heavy traffic, activate it, then fall asleep. When traffic clears up and they're still sleeping, they're going to get rear-ended when the car is putting along at 37 mph while everyone else is going 60+.