Downside: cranes and tow trucks to move all those cars around. Impossible with 2019 volumes. Now? Dunno
Upside: a boat full of battery-less EVs won’t end up at the bottom of the ocean
A consumer could test this in theory, I think it would take an OEM with lots of lawyers and lobbyists to actually challenge. One of the companies slighted by this bill should give it a try.