[gallery link="none" columns="1" size="full" ids="54756"] Four rings, four driven wheels – a 40-year success story From the lockable center differential to electric torque vectoring Ahead of the competition: a triumph in motorsports and among customers The quattro drive has been a technical core area and pillar of Audi for 40 years now. The great success story ranges from the manually lockable center differential in 1980 to the three electric motors that drive the new S models in Audi’s e-...