MM i have flamesuit on as well but what does sial mean? cheers for being thick.

 

I'd be interested in a technical answer to the first question. I believe that "symmetrical 4WD" refers to the fact that each drive shaft is the same length, possibly for better grip/handling (most off-roaders have one side longer than the other). Don't know if the sport is the same, but I would have thought so.

Also the diffs can send more power/torque to the rear if required. Again, not sure if the sport is the same.

Oh, and SIAL refers to "Scooby in a lake", a picture posted up a zillion times and signifies something that has been seen many times before.

 

Its symmetrical because all the major components lie along the 'long' axis of the car which means the car is 'symmetrical' left to right. The advantage of this is that the car is more balanced side-to-side which gives better traction and handling.
Your Sport is therefore 'Symmetrical AWD' and I think all recent subarus say this on the rear window.

 

50:50 F:R

 

Sports are the same torque split as Turbos. 50:50 split and are symmetrical.