The new quattro differential in the RS5

[Tanner]

http://www.youtube.com/watch?v=m4OWjX3tDYA

[audifirst]

Nice.. is this control electronically ?

[Tanner]

Doesn't look like it, the differential is purely mechanical. Looks like the Torsen T-3 with the addition of the crown-gear for the front and rear output (along with the additional plates) which provides the self-locking mechanism. So in the vid, it said without ESP, it will send a large amount of the torque to the one axle that has grip if the other has no grip, but with ESP, then it's possible to send 100% of the torque to one axle.

[NOTORIOUS VR]

sweet video