Nothing except regular maintainance for a car with 115,000 miles. Problematic areas are a rattling heat shield, expensive/weak supercharger and really nothing else!
You can't imagine how much I love this car. I went to Canada to buy/import it knowing how capable it is. 4WD with the G60 engine, better suspension components, etc. It's beautiful and a heck of a lot of fun whether on the track or in the snow. Only one of 300 or so, though.
I agree. But it should be noted that you need to have a respect for cars and know-how to attack the kinks with the G60 engine and general VW issues.
You're probably aware of this online group by now... but, if you're not... http://autos.groups.yahoo.com/group/syncrog60/
These are great cars... So long as they're properly cared for. Then again, what car isn't, eh ;-)
Cheers!