Audi has spiced up the RS6 Avant and RS7 range with the performance package. In order to prove that their kit is doing lots of things in the cars, Audi has also unveiled the first promotional video of the RS6 Avant and RS7 performance models. 
 
As you may have read, the new German sports cars are delivering 605 horsepower and 750 Nm peak of torque. With a sprint time of just 3.7 seconds, the new RS performance models retain the same best-in-class fuel economy and efficiency figures as their standard versions.
 
 
Both models have an improvement of 0.2 seconds over the standard RS model, and need just 12.1 seconds to accelerate from 0 to 124 mph, giving them a 1.4-second advantage. 

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You can also order the Dynamic Plus package that removes the top speed limiter to 189 mph. 

Source: Audi