That would be drive German built in Alabama?
Americans are every bit as capable of building very high quality vehicles as anyone else. Acura makes the NSX in Ohio.
Italy makes shitty cars but also makes handcrafted beauties. Britain made lots of garbage but I have seen two plants making very nice stuff.
Same with USA and Canada. I went through the Ford plant in Oakville and it was not great. I went through the Harley plant in KC and was very impressed.
Differences in quality are mostly engineered in, by product engineers and production engineers.
Assembly line workers have a set amount of time to do a specific task. How much time they have determines how careful they can be. At Harley they had lots of time and were extremely careful. At Ford they had barely enough time and were rushing to finish. The extra labour at HD adds to the final sticker price.
At Ford brake lines were standard crap. At the UK plant I saw they used stainless braided hose. One costs several times more than the other and will last forever. One takes a few minutes to install, the other takes several minutes to install. It's not about prestige, nobody will ever see the hose, but the owner will know it is there.
I would love to tour the AMG plant. Like HD they have a single employee assemble motors start to finish. I would like to see the Ferrari factory even more.