I am just starting to complete the restoration of a 1952 +4 2 seater DHC, that I believe from old photos and trunnion design originally had a single spare wheel and additional luggage space in the tail, as the +4 prototype JNP239 in the 1951 Autocar road test. Does anyone know of such an arrangement on another car? I really want to recreate the original design, and would very much appreciate any photos of the detail. I have quite a few pictures of the prototype, and the autocar test, but unfortunately Martyn Webb cannot trace any detailed drawings in MMC.
I have the Autocar Test, and I see what You are talking about. It is hard for Me to imagine this would be of much use. As the door folds from the bottom I could see it as support for a piece of luggage. But that is about it.
"Luggage capacity can be supplemented externally by a tray hinged down from the tail, this arrangement being optional in place of the second spare wheel that is normal equipment."