I think you need to understand about: a) the battery in a Tsla b) the space needed for range extenders c) the space needed for hydrogen tank to power range extender
The auto manufacturer is one that has: a) multiple plants b) multiple distribution centers for parts in either supply chain to main assembly or to dealers or all of them
Volkswagen said not them when approached a week or so ago.
Where can we find a list of plants per manufacturer?