This picture's from r/autumn. I searched with Google Images but no result!
Is there a geographical term for this landscape?
Can I access this by private automobile?
This is a picture of Cerro Torre, in Patagonia, Argentina. This view appears similar to the one from the Pliegue Tumbado trek (https://elchalten.com/v4/en/pliegue-tumbado-trek-el-chalten.php). It is a 7-8 hour return hike, with an elevation change of 1100 m, from the town of El Chaltén (the closest road access).
Doing a google search for the signature at the bottom of the image results in an Instgram page with page for the post - https://www.instagram.com/p/ByQF62KoVsU/ - the post indicates that this is a photo taken in Patagonia (Arginentia), it seems likely that this is the case as the same post includes another photo with the same background but a different foreground, likely taken from a few steps to the side. Although that said, I suspect a healthy dose of post-processing enhancement has taken place.