Originally Posted by footie
Safe, accurate turning
The sports differential enables the quattro system to not only transfer torque between the front and rear axles to counter traction losses, but also between the rear wheels. When cornering, power is redirected to the outside rear wheel, literally pushing the car through the corner. The driver benefits from feeling more in control and the need to make small steering corrections, so familiar in an ordinary car, become a thing of the past.
Copied from BMW X5/X6 M, copied from Japanese.