Audi Audi A4 and S4 (B6) - Classic Car Review - Buying Guide

Better than previous A4 in virtually every respect. Classy looks, plenty of kit, roomy cabin and a good crash safety rating.

Future Classic Friday: Audi S4

Used car buying guide: Audi S4 (B6/B7)

What Makes the Audi S4 An Instant Classic - eManualOnline Blog

Used car buying guide: Audi S4 (B6/B7)

Which used Audi models should I avoid while buying a used Audi? I want a B7 A4 Quattro Avant 3.0 TDI. Is that a reliable car? - Quora

Audi A4 (2001 - 2005) used car review, Car review

2004 Audi S4 Quattro Traverse City, Michigan

2016 Audi S4 Price, Value, Ratings & Reviews

Salvage 2004 Audi S4 Quattro 4.2L 8 for Sale in Littleton (CO) - 3936*****

Audi S4 (B5) The Brave Pill - PistonHeads UK