 This is the second Audi purchased by my family.  The first, an Audi A6 had major brake problems at 20k.  We recently purchased a 2006 A4 with a S- Line package.  It does have a nice look and ride but we have had major problems with it since the purchase.  It has been in and out of the shop for several months with constant rattles, speakers not working, and a major problem with the front end.  The car will randomly lock up when turning corners and there is a constant rattle from the the wheel being turned.  This is a major dissapointment, because the vehicle is fun to drive and does perform well in poor driving conditions.