One of my Arizona Chassis shop friends told me that another shop (well versed in UTV's)that he deals with was contracted by Yamaha to build two prototype UTV's with " streetbike" type powerplants and the driveline components provided by Yamaha, once they were built and tested by Yamaha, dimensions were noted, the drivetrains were removed and the units "cut up" for scrap. I don't know how true this all is, but I found it an interesting story.