These new cars are 100% drive by wire; they're all in on their dry cell battery tech, it's 100% 48v for the "normal" electronics like power steering and HVAC and instrument cluster, etc.
They want to sell the CT to the weirdos who're willing to put up with whatever the heck the truck dishes out. They want paying beta testers to put miles on these things, get them more tested than they can with an internal testing program.
Only once the tech is more proven will it be "safe" to mass produce a "normal" car with all the same tech. The goal is to catch all the "nissan leaf lizard chemistry" or "bolt self immolation" bugs on the people willing to buy a CT.
this is a meme car for a person that effectively doesn't exist: a survivalist tech bro.
not saying that person can't be found -somewhere-, possibly in a Neil Stephenson book, but even at the insanely inflated prices of the Cybertruck that's not enough to stake a multi-year production effort.