In all honesty it doesn’t matter a damn what one or even ten governments say. Car / Vehicle manufacturing is Global in nature.
Individual Governments rarely last 5+ years, unlike Global Manufacturing companies.
If Vehicle Manufacturers can replace ICE vehicles with E equivalents whilst maintaining their profitability then they will. If they can’t, then they won’t. If Governments insist and the prices are too high or the population disagrees then the Government will be voted out in favour of an alternative that represents the people’s choice/requirements.
At the moment the “People” are quit happy for the Governments, All or Any Governments, to make such proclamations as there is a choice to suit all pockets. However as that choice becomes limited, unless there are significant developments in E vehicles and support structure and therefore costs and affordability by the masses, then Governments will be changed.
The Vehicle Manufacturers are not going to price themselves out of their Market, but Governments can vote themselves out of Office if they don’t represent the masses.