 I bought my A4 2.0T FWD new in '08.  It now has 185K miles and still has the original clutch. Maintenance has been: timing belt at 90K, engine hood piston (holds the hood up when open) and the normal - Tires, brakes, Headlights, taillights, battery, ignition coils.  The only thing that has ever broken is the latch on the center console.  I went from a 2001 Porsche 911 to the Audi (kids got to big to squeeze in the back) and while it doesn't have the HP of the 911 it has been a fun car to drive with fantastic gas mileage.  Vegas to LA usually 32-33 MPG at 80mph+  