BMW are launching a new luxury scooter this year. There was a time in the 50's when they toyed with the idea of competing with the likes of Vespa and Lambretta. They ultimately decided not to build their own scooter, but stick to motorcycles and bubble cars. It seems that the prototype BMW scooter still exists. This is it! Quite a substantial scooter. Note that you can just see the prototype Vespa peaking out from behind the BMW.
Photo from the always excellentVintagent blog.