z1ngaro

Hi, I plan to buy a 2010 Subaru Outback. I live in a mountainous area and was planning to buy the base model. Has anyone had any problems climbing hills/mountains in the base model? Any need to turn off A/C when ascending? Obviously the others cost more so I would prefer the base model. I am not a car fanatic or anything. I just want something that does the job. Thoughts/experience and opinions please!