In this post-apocalyptic scenario I think the range would be secondary to using the battery for day-to-day living. The RV could have solar and keep the battery topped off all the time.
Folks understand L1 and L5. The levels between are such a blur and mix-match of things that I don't think anything is even accomplished having these levels. I agree with you, from what I have seen Tesla is far ahead and rapidly progressing using the right approach of training NNs while having a human behind the wheel.
> Not until they reach parity of charging station with petrol station
One thing to remember is that all ICE cars need a gas station but not all EVs need a public charging station. I only use a charging station for long road trips the rest of my charging is done at home.