can you just tap the screen and than open the "settings"?
Yes. Setting via Car Play MyRoute-app > Settings > Cameramode > Automatic seems to mace this as 3D.
But: When I do press minus or plus for zoom, it always falls back to 2D and does not go back to 3D. I need to go again into settings and choose automatic. This can't be the only way? This differes from iPhone, since there, MRA does stay on 3D when using zoom.