quattroworld

to go along with engine/transmission, steering, engine sound, suspension.

There is no description for it in the manual but one can assume that the dynamic setting will send more power to the rear.

However I did find mention that it's the same as the new tt/tts system. I found this in the press kit for those.

"A new quattroŽ all-wheel-drive system varies torque delivery percentage front to rear by measuring the coefficient of traction at all four wheels via 150 readings every 10 milliseconds, and for the first time can be controlled through the Audi drive select system. When in dynamic mode, the quattroŽ system has a rear-wheel power bias."