Surely battery price is a problem for the average motorist too?...

Surely battery price is a problem for the average motorist too?

How does piping hydrogen as ammonia help anything, with the costs of making the ammonia at one end, and converting back to H and N at the other, let alone the costs of installing (see, the transport solution is not already solved, as you don’t have the network) and maintaining a high pressure network for a highly toxic chemical?