Thanks for your replies!
I have Borrelli on my watchlist, but I think your example makes it clear that such a dramatic roll as in the initial pictures can only be realized with (hidden) buttons.
Proper Cloth is also on my radar, in fact I have a first shirt on order, just with a President cutaway collar. I have noticed the one with the hidden buttons, but that one looks kind of flat to me, not really curvy :)
Instead I am thinking of e.g. a (Soft) Roma Cutaway and have my tailor add the buttons in order to influence the roll. I the past I have had him add the buttons to one of my shirts to tame the long collar points with good results. Back then I wasn't hooked on the roll, I just wanted to avoid that Staying Alive-shirt collar over jacket collar look.
I'll probably continue my quest in the Proper Cloth thread once I've received my first trial shirt. Thanks for this idea.