( http://www.TFLcar.com ) What's the fastest Audi A6 Quattro? Is it the 2000 twin turbo charged A6, or perhaps the next generation 2005 normally aspirated A6, or is it the brand new and supercharged 2012 A6 Quattro? Just for fun we decided to find out by drag racing the last three generations of the Audi A6 Quattro in our TFLcar Nose to Tush Drag Race. Check out to see how your favorite Audi A6 did  in this fun video.