The snowy road got narrower with the further I went and the only nearby place to turn around was the tiny junction I had driven just past, so I reversed back to it and got out to check whether my BMW will not get stuck. There was a ditch-like slope, but it seemed possible to turn around. At first I tried to go in reverse a bit further, hoping that a better road will be behind the corner, but no luck.
When I got back to the junction and wanted to get back on the road, my speed was too low and wheels started spinning...