Quote:
Originally Posted by watoowatoo
the new optional "Audi quattro Sport Differential" is just a copy of the system in the X6, not the opposite.
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Both of them are copies of Mitsubishi's AYC (the first commecial electrically-controlled active torque vectoring rear differential), which was available (if I'm not mistaken) starting at 1996 on certain Evo models.
http://www.lancerregister.com/faq/G04/g04.html