I have 2008 Subaru Outback (160K miles) with an automatic transmission and have been curious about the Sport Mode that can be shifted into. I read in the car's manual that it increases pickup and is preferable for driving up-hill. I was curious how it accomplishes this, and if it has other consequences as well. (I have googled this, but have found a lot of different and unsatisfactory explanations.)
As a bonus component to this question, I have a bit of a wonky transmission that tends to "catch" or "lurch forward" when I attempt to accelerate too fast directly after breaking. When I drive with Sport Mode activated it seems to reduce the frequency of this quite dramatically. Why would this be the case?