Suzuki changed its CVT with the 2013 model to be a bit more efficient. So now there's a patbox for the 'fly by wire' set up.
http://www.pattakon.com/pattakonPatBox.htm
I was only thinking of this as it might be easier to package for a recumbent streamliner than dealing with a clutch and forward controls. It looks like it would be a way to "fine tune" a cvt for better economy.