Well, that styling mule has all kinds of pre-production details they were obviously trying to sort out. The spring pitch and shape is different on both fork legs. The strut caps haven't taken their final shape yet. The brake is still on the right side. The rear fender support bars are close to final shape but, that extra rear fender has the clay flourish on the bottom. The engine styling is still taking shape and while the primary looks like it's close to final, the cylinders still have the rear on the right instead of the left.
Wow, wow, wow. That's the missing link between the early prototypes and the final production models.