Audi will present its new S models for the first time at the 2011 Frankfurt Auto Show (IAA). These models are characterized by power combined with appropriately low fuel consumption. The engine down-sizing strategy of the brand with the four rings has reduced the fuel consumption of the S6 by as much as 25 percent whilst offering sportier driving performance. The Audi S6 and S6 Avant Athletic character, quiet understatement and richly appointed - Audi is...