The problem is that the US hitches for most VWs don't attach to the Euro mounting points (bumper), they have you drill holes through the sheet metal where the spare tire is. There is one bolt that goes through the tow eye on the passenger side. Not a very confidence inspiring installation. I've been there.
Fortunately, my little Scion has proper mounting points for a hitch. Sorry, don't have pics of it on my iPad, though.
For those who tow with VW cars: check out Bosal and Westfalia hitches. More money, but much stronger!