Stock v stock, the RS4 is quicker, though not by much and i doubt you'd notice driving the cars separately, For short change the RS6 can be turned into an animal....no one has ever tested the RS4 slower than a 4.6, and most are 4.3-4.5 range, with a couple of 4.2s. While I find the interior of the RS6 dated compared to the new S6, it is a great ride. Toss the DRC and chip it.....

i'm just hoping the new RS does come in a sedan, and does make it to the states.....

• http://www.youtube.com/watch?v=hVqCLck_YxM&feature=related

2007 Black RS4
Stasis SLs
Strat Short Shifter
ECS H-Pipe
Bridgestone 275 RE-01Rs-sticky!
LPP-Dual Jammers upfront
Hotchkiss Rear Sway