If you ignore the equally powerful RS7, the RS6 Avant is without a doubt a model that stands head above shoulders amongst the Audi lineup. Its 4-liter twin-turbo V8 is equipped with the very latest tech from the quattro division, but just like any stock car there is a lot of untapped potential. Just how much potential? Keep reading and find out. French chip tuning firm Digiserivces has just welcomed one very grey example of the RS6 into i... 


Source: autoevolution