I have no idea if it'll be a successful product. Not my taste, but I'm not the target market.
https://en.wikipedia.org/wiki/Subaru_BRAT
https://en.wikipedia.org/wiki/Chrysler_PT_Cruiser
But from Tesla's presentations, the Cybertruck's impact on their manufacturing, designing the machine to make the machine, has been considerable. Like a demonstration platform.
Cybertruck's reduction in labor costs and part counts will be game changing. For instance, no body or paint shops, which entail 1/3rd of the production cost (IIRC).
Assuming the next two passenger vehicle models follow suit, I have zero doubt Tesla will hit their 20m/year production targets. And make a brazillian dollars doing it.