File:Audi A4 B6 Cabriolet front.jpg - Wikimedia Commons
Audi A4 - Wikipedia
File:Audi A4 B6 front 20070326.jpg - Wikimedia Commons
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The Audi A4: History, Generations, Specifications
File:Audi A4 B6 sedan -- 01-23-2012.jpg - Wikimedia Commons
The Audi A4: History, Generations, Specifications
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File:2003-2005 Audi S4 (B6) sedan 02.jpg - Wikimedia Commons
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File:Audi b6 s4 2005 rear.png - Wikipedia
