During the late 1960s and early 1970s, British Leyland tried unsuccessfully to produce a viable replacement for the Mini. A number of interesting proposals emerged – none of which made it into production.
Long before the term supermini had been coined, British Leyland Motor Corporation (BLMC) had begun to think about producing a new Mini with superior space, comfort and practicality. This gallery contains some initial thoughts and some blind alleys.
http://www.aronline....w-mini-1968-74/