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Quattro generation III   Edit
Used only on the Audi V8 starting from 1988 to 1994.

System type: Permanent four-wheel drive.

V8 with automatic transmission:

Planetary gear centre differential with electronically controlled multi-plate locking clutch

Torsen type 1 differential rear.

Open differential front.

V8 with manual transmission:

Torsen type 1 centre differential.

Torsen type 1 rear differential.

Open front differential.

How does the system perform: In on-road conditions the car will not be able to move if one front and both rear wheels lose traction altogether