 I've had an Audi A3 2006 and it's been nothing but trouble, with numerous repair visits to the dealer (covered by warranty until recently).  The problem areas have been the fuel injection system and various electronic components.  Just in the last 6 months, I've been to the dealer 7 times.  If you like to spend time in the waiting room of your dealership, this is the car for you.  Otherwise, there are much better (and cheaper) choices out there.