Here's some information for you if you're interested. I was pretty sure that a semi-active diff was being used in the RS and top-end Mondeos but weren't quite sure what Revo knuckle was until I saw the CAD drawings - Now I understand how they're planning to reduce torque steer, quite clever, but it wouldn't fully get rid of it and I still maintain that for laying down large power in any vehicle, RWD is always far better.

REVO-KNUCKLE <-- Read