 I bought my S4 in July of 2000. After 
the break in period I started to really 
let it out, and boy what a blast! The 
car handles beautifully! The S4 
desperately wants to cruise at 80mph 
all day, and you have to practice 
serious restraint to maintain 
responsible driving practice. 
 Since 2000 I have only had a problem 2 
minor problems: 1)The horn, which after 
a good prolonged blast (think: NYC 
traffic)looses "pressure" and is 
rendered inoperative - I've "fixed" it 
twice so far.
 2)The low profile Bridgestone Potenza 
tires that came with the 2000 model are 
not suitable for winter driving. Even 
with Quattro!