Miguel Galuzzi, famous designer of motorcycles for Ducati, talks about how the Monster came about and how it got its name. And Pierre Terblanche talks about how the MH900E (most beautiful motorcycle ever, as seen in thmbnail) happened.
Let the designers do what they do best without interference from marketing/execs and you usually get products that are unique and sometimes amazing. Very few companies understand this even though seems common sense or maybe they just don't have the balls to take a chance.