One thing I've noticed with the all wheel drive vehicles I've driven (Jeep Wagoneer and Honda Element) is they seem to wander more in deep snow then my Silverado 4x4. They did good though on ice and when your in and out of snow and slop on an otherwise mostly dry road when you really don't want to use the part time 4x4.
The Subaru AWD is full time and always on. Not sure about the Jeep but Honda's system is fwd and it switches to AWD when it senses wheel spin. I have a 5speed so the torque split is fixed at 50/50 all the time. If you are in snow and get aggressive with the throttle it behaves like a RWD and will oversteer. This is a bit of a surprise for anyone used to FWD. It was nasty gooey snow with a couple of inches of ice pellets on top of it. There were deep ruts made by 4WD plow trucks and since they were wider than the Forester I kept having to fight to keep it running in them. When I think about it, that was probably the root of the problem. I'm glad I didn't have to drive the whole 15 miles or so to work in those conditions.
Edited by JDBrian, November 25, 2011 - 05:21 AM.