Whether you're into wagons or rocket ships, this 2004 Audi S4 Avant has something for everyone. This Avant comes finished in eye-searing Nogaro Blue with an equally bright black and blue interior. Stock, the S4 Avant's 4.2-liter V8 made 340 horsepower, but this one has quite a few modifications: ECU tune, headers and complete exhaust—no updated horsepower numbers are given. Find this Avant on …
