Since we're already down the political rabbit hole and keeping things mostly friendly. The US is uncompetitive for manufacturing, just like Europe is. Europe perhaps more so. As countries put more regulations in for human considerations and environmental considerations the cost of productions goes up, but the finished product to the market remains the same. While Trump is not articulating it this way, tariffs to make the US production more competitive also make the regulatory laws less restrictive and less of a burden. Yes, costs overall go up, but they have to in order to fund the regulations desired. As it has been, countries like the US and those in Europe make a more responsible product, but most in the market shop by price, not how a product is made. Every time you vote for a candidate that promotes environment or labor regulations in, you're voting for an increase costs. These might be ultra important regulations indeed, but they have to be accounted for in the market, because once some places have those requirements and others do not, it's not really a free market anymore. Just about every one of us has chosen a Chinese product over an American (or Canadian, or European) version because of cost, but it's not that the Chinese are just better at making them, they're cheaper at making them for all the reasons we pretend to be important. I say pretend, because if you felt they were important, you would buy the better made product for the higher price.
But how does Europe fit in all this? I've never done a deep dive, but my perception is European standards for environmental and labor are higher than in the US, shouldn't that mean they tariff us? Well sure, if their markets can support it yes. But I think where Trump is coming on the European front is the huge disparity in military costs. Believe it or not, most Americans don't want to be Team America, world police. We're tired of being the first ones in financially or with boots on the ground. I don't care at all where European state lines rest. As an Iraq war veteran I can not tell you I did anything that actually helped my country, or theirs. And while yes, there has been huge involvement from some allies, the overall spending for world peace has largely been in American shoulders since WWII. In that, I'm okay with using Tariffs to motivate countries into their own defense budgets (or better yet, seeking alternative means of peacekeeping). What does a pro western Europe stance do for the US?
So I don't mean to say that tariffs won't increase prices, they will, but prices NEED to go up if we are to continue to exist in a market where we care about environmental impacts, human labor considerations, and allow for equal products to enter the market without those. We, as the United States, need a more compensated role in the market to account for our defense spending of everyone else. Perhaps it is best if the US plays Team America as a matter of some geographical isolation and economy of scale, but then we should be compensated for it in our trade deals or some other means. But I don't think Volvo will be uniquely harmed, and that was how I took the OP question. Volvo's prices will go up if the market prices go up, but they will not go up higher than the market. People won't start going for Lincolns (boy they've gotten awful) just because they're cheaper.