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Audi A4 vs S4 - Which Should I Buy? | Nick's Car Blog
As followers of this blog know, I sold my beloved 2006 Audi A4 back in February, 2012, and traded-in it in for a 2006 Audi S4. After ~8 months of owning the S4, I have experienced the highs-and-lows of owning an S4, and feel I’m qualified to give an opinion on those trying to decide …