I’m not sure if you’re aware of this, but back in the late 1930s, the preferred way to convey how much status you had was to park next to just the right kind of tree. This is how people would show off, finding just the right sort of willow sapling to park really close to, letting everyone know they were people of refinement and taste. This was called arboreaching, and Opel was more than happy to use it to sell Kapitäns.
I mean, they sure do look great next to some trees, don’t they? And, by using an illustration instead of a photograph, Opel was able to really get the ideal look of the trees, so you know that Opel owner was classy as fudge.
Also notable are these amazing creased headlights Opel was using, in this short-lived era before standardized sealed-beams but also enough technological development to make shaped, custom headlights, which wouldn’t re-appear until the late 1980s, at least in America, 1960s or so for Europe.