This only holds true on manual transmission subarus, the automatic has a system that is functionally the same as most other AWD systems.

 

Good point - one of the reasons why I prefer a std subie.

Some of the subie models and years have different torque distributions. I honestly forget what they are but they are not far off from the manuals, in most cases (I think an auto 04 impreza is 60f:40r and a std impreza is 55f:45r, or was the torque movement 10% between f:r in the auto and 5% in the std?). I think I read somwhere sometime though one of the models starting with a 90f:10r distribution. In any event there is more torque distribution to the rear wheels in most auto transmission subies than most other real-time awd systems.

But the std subies are really the ones that optimize traction in poor conditions.