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Originally Posted by Foxfire  Also, I'm not sure QTV is applied only to the rear wheels ala BMW DPC... seems to me it could also be applied to the front axle and therefore benefit FWD Audis as well |
QTV is also based on rear active differential (just like BMWs DPC), while front axle torque distribution is controlled via central Quattro differential - while left-right torque distribution on front wheels is managed by ABS & ESC systems.
Mind that BMW M3, M5 & M6 cars already feature rear fully variable M-diff (with up to 100% lock). While non-M models will get the DPC.
I'm not sure which Audi cars will feature QVT - yet I'm sure the sporty models will get it initially (RS, perhaps even S).