<form accept-charset="UTF-8" action="/car" method="post">
...
</form>
It’s going to /car regardless based on the action set in the form element. It’s new.html.eex that is reused.
From Programming Phoenix 1.4:
User Controller
https://media.pragprog.com/titles/phoenix14/code/ecto/listings/rumbl/lib/rumbl_web/controllers/user_controller.change3.ex
Note how new renders with new.html while create renders with new.html in case there is an error (in case of success it redirects to index which renders with index.html).
But your code does the same thing.
