don't listen to this guy, vw's are stupid cheap for parts, especially the older ones. There are definitely certain parts that will break your wallet if you go through the dealer
I've owned my G60 for three years now, the most expensive part is the supercharger rebuild, but I've budgeted to allow for a rebuild once a year (~700 bucks)
besides that, I've sank maybe 500 on parts that needed to be replaced...
daily driven, and rarely gives me problems...