The only American brands I see in Europe are either old Chevrolets (manufactured in Germany by Opel when they were part of GM) or Jeep/Dodge/RAM trucks and similar which are owned by Stellantis (the merger of PSA (Peugeot, Citroen) and FCA (Fiat, Chrysler)) and manufactured in Italy. So they aren't know for their poor quality because they're made in the EU, in the same factories that make other known models, on the same bases (e.g. an Opel Ampera and a Chevrolet Volt are the same car, from the same factory, different badge, slightly different interior, slightly different exterior), but they are known as shit inefficient cars that mostly assholes buy.

The only American American cars (not built in the EU with an American badge slapped on the front, but produced in Mexico) that I can think of that I have seen in Europe are Chrysler PT Cruisers which are universally known as shit.