I believe the only car they build there is the Passat. I drove one once. Nice, but totally boring to drive. It was engineered for the US market which is to say it is built for people who think of cars as appliances like washers or refrigerators.
I work near a VW dealership. Low volume sales is what that car line is all about.
The 2007-1010 version of the Passat (B6 platform) was German-built, is fun to drive and better looking. They’re having a hard time selling the Chattanooga B7 and are furloughing workers, which might explain the UAWs traction with the workers... VWs target audience (who they ignored) looks at the B7 and says “meh ... might as well get a Camry”.