The US buried its auto industry a long time ago and isn't a big slice of their economy anymore, as they have services, banking and tech as the big drivers of their economy, but for some EU countries, especially Germany and central-eastern Europe where the Automotive industry provides a lot of middle class jobs, it will be a bloodbath.
I used to work in the German automotive scene about a decade ago and left, but when I talk to my mates still active in the industry the news they get from management is grim. At a town hall meeting (major German OEM) they were recently told due to increased pressure from Chinese competition they'll have to deliver projects "quicker and cheaper than before", whatever that means, since they told me there's no way it can be done faster and cheaper, as for a new project they spent 2 months just to deiced which version control they should use as the younger devs wanted to use git while the older devs close to retirement wanted to stick to clearcase.
I expect the EU will introduce hefty tariffs on Chinese EVs when the local automakers will lobby for it to protect local jobs, but hardcore protectionism long term only ensure your domestic industry lags behind technologically and falls behind globally.
Luxury brands like Bentley, Porsche, Lambo, etc will be fine, but the ones for Average Joe will have a rough time competing.