Well I could see a unified standard for all EVs in the future. It is the only thing that really makes sense for long haul travel.
Not just Teslas but all EVs.
I was involved in Solar Cars in College so I use to know something about these technologies, especially batteries and solar cells, but the technologies have passed me by.
SDDuuuude is more current then me. He has been building Bots for sometime and weight Vs. energy density was a huge consideration.
In college, SunRacye was the nothing but a huge experimental arena for todays EVs.