The S6, like all Audi "S" models, is fitted as standard with Audi's trademark quattro four-wheel drive (4WD) system, the S6 using the Torsen-based permanent 4WD.
2011 Audi S6
2011 Audi S6
2011 Audi S6
2011 Audi S6
2011 Audi S6
2011 Audi S6
2011 Audi S6
2011 Audi S6
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2011 Audi S6