a-4 or s-4
if you do your proper research and the S4 checks out... definatly, definatly do the S4... its the way to go, im hoping to soon find me a good deal on an old B5 S4... il have to see how that goes
before you do anything, what are you planning on doing with the car? I think that 2002 is that bi-turbo joint, so you should be able to mod, plus stock its like 250hp. If you want to do some modding do the S-4, if not A4 3.0. I agree, the 3.0 will probably be more reliable since its newer, but if you plan on modding you won't get too far with it. The 3.0 is definitely a lovely car anyway.
In this case go with the 05 3.0. Just like the 3.0 that S4 is not very modable because the its a NA V8, not the very modable and faster biturbo platform in the b5 S4. So the newer car wins. BUT, I would get a b5 S4 rather than your two choices, but thats just me.


