A recent trend for both US companies and US divisions of companies based overseas is to open domestic factories (2, 3, 4). In some cases this is done to cut costs. This recent trend of "insourcing" is also used as a selling point for automakers that are opening new US plants (5, 6).
Volkswagen, specifically, made news in 2008 when it announced plans to open a new, state-of-the-art US facility in Chattanooga, Tennessee (7). It opened the plant in May of this year (8) and has been able to cut labor costs (2). It has also designed a vehicle specifically for the US market that is being manufactured specifically at the Chattanooga plant (9).
Sources:
1. http://it.toolbox.com/blogs/sourceoff-blog/big-three-automakers-outsourcing-to-mexico-39465
2. http://online.wsj.com/article/SB10001424052748704083904576335501132396440.html
3. http://www.kmmgusa.com/
4. http://www.reuters.com/article/2010/03/07/us-toyota-idUSTRE6260DA20100307
5. http://www.youtube.com/watch?v=j264EVvD4gI
6. http://www.youtube.com/watch?v=clwZqni4a9U
7. http://www.autoblog.com/2008/07/15/volkswagen-announces-plans-for-factory-in-chattanooga-tenn/
8. http://www.timesfreepress.com/news/2011/may/24/live-grand-opening-chattanoogas-volkswagen-plant/
9. http://www.autoblog.com/2011/01/09/2012-volkswagen-passat-chattanooga-vw/
image: http://greennews4u.com/wp-content/uploads/2011/05/VW-Plant-Chattanooga.jpg


