2021 OB Touring, 2011 OB Premium
We have a 2021 Touring (2.5i) and it seems to be just fine for our needs, but then again, we live in the greater Portland metro area, so it's pretty flat. We used to live in the Central Sierras of CA at 4600' and our 2011 OB Premium (also 2.5i) did just fine in the mountains, though if we needed "get up and go", we just pressed harder on the accelerator. Tahoe is quite a bit higher up than we were, and if you really desire some thrust, then the turbo motor is the way to go. Besides, good, used, newer model Outbacks are in high demand. Best of luck in what you do.