This is an interesting one. Our Big 3 has about half-again as much market share in the EU as the German Big 3 has here, but the US car market is about half-again larger. And one of our Big 3 is actually British owned to begin with, so there's that.
Given an increase in domestic sales for an equal decrease in European sales, we come out ahead in terms of employment. And our domestic factories have plenty of spare capacity, and there is plenty of competition in the market, so prices likely wouldn't rise.
Plus, the EU would have to make such a decision, not just Germany. But there really aren't any other countries with major car manufacturers in the EU that would feel the heat of retaliation, so they probably would get the vote. Then again, the EU imports a lot of food, so maybe they'd think twice about retaliatory tarrifs.
First, I think you meant one of the Big 3 is owned by Italy, not GB (Fiat). But they are both in the EU - for now.
Second, if Trump puts tariffs on German cars, then Germany will put tariffs on American cars. And then it will inevitably spread - as the EU puts pressure on their trading partners to put tariffs on US imports. And Trump will put more tariffs on those countries imports and on and on until you have a trade war...where everyone loses but the rich
Third, price for things will go up a lot, not a little.
Take a widget as an example. Say there are two widgets sold in America. One is made in China and sells for $10 and one is made in America and sells for $11.
Now when Trump puts a 35% tariff on the Chinese-made widget, it will then go up to $13.50 and no one buys it. So the American company has a monopoly and sells all they want and hires more Americans to built the greater demand. Of course, you have to pay 10% more for them then before, but that is worth the extra jobs...right?
Well, it won't be 10%...it will be FAR higher.
You see, the person that owns that American company has a monopoly. So why will he sell his product for $11, when he can sell it for $12.50? He still well undercuts the Chinese made one plus he gets the 'Buy American' sales as well.
Assuming people need this widget, they will have to pay the extra price. They pay 25% more, the company and it's owners/stockholders makes more money. Sure, there are a few more American jobs. But all the little guys/gals have to pay 1/4 more for these widgets while the rich make more money on the monopoly.
Do you want to pay 20-25% more on almost everything you buy just for a few extra U.S. jobs (when the current unemployment rate is already only 4.7%)?
I sure don't.