Hmm. Of course if you put tariff on imported cars, more cars will be manufactured here. That is a given to me. “More cars were manufactured here”, however, does not speak to whether prices were increased as a result.
Say Kia is manufactured in s Korea (I am not sure if that is the case). Right now competition with Kia keeps us manufactured prices low. Now say Trump puts 100% tariff on Kia. Then Kia will be priced out of competition. People stop buying Kia and because of lack of competition us manufactured car companies will increase prices.
Again, I m not that well versed in macro economics but that is what logic tells me.