had an idea to get the door line you wanted. bit complicated but possibly doable will involve parts of arch and door panel fitted to the door so that the bmw door opens as it did normally and a false raised panel further back. eg extend a panel over the door sinking part of the arch and put it on the door. giving illusion of the door opening further up with the angled panel.only thing is when you open the door you will have the panel on it. other alternatives doing the same but when you open the door you have to lower the window all the way down . extended fixed panel going left to right that sits on the door frame. sorry got bored.
