We have a P85D and a short, but steep drive. When it snowed a few days ago our car was unable to make it up the drive without spinning out and slipping backward. There was about 2" of wet snow on the drive which hadn't previously been driven on. We were finally able to get up the drive after getting a run for it. When watching the car attempt to go up the drive from the outside, it appeared that one of the back tires was spinning but not the others. We thought the car was considered all-wheel drive. Is there something we're missing here, or is there a setting to enable better traction to enable drive of all wheels in snow? My F-150 truck easily walked up the drive when put in 4 wheel drive with its highway tires. Looking through the menus we didn't see any options pertaining to traction. We're expecting more snow tomorrow and were hoping to get out the drive again.