I don't know how to value a stock, but after riding in my friend's Tesla a few times on road trips. I seriously doubt I'll buy a ICE car ever again unless for specific purposes (mini-van). I know 10 people who owns Tesla, the 6 or so friends I've spoken about it feel the same way as I do. If this keeps up, I think Tesla's stock price is under valued.
There have been a few news about EV vans. Also Van conversion have been going for quite a while, you see a few on youtube. I'm surprised nobody have made an EV model already..
An all EV van would be great but this is closest you can come today.