http://vespakc.blogspot.com/2007/01/well-it-looks-like-we-have-name.html
I had fallen in with the idea of the bike being called the MP3. Then they took that away and replaced it with "Piaggio Three Wheeler." I laughed at the obviousness of it. But now.. the MZ3... Hmm. Not my first pick, but I'll go along with it. As if I have any choice!
Discuss amongst yourselves.