I too would draw the line at calling the SS a bike. It clearly is not. I call the spyder a bike as it's closer to that than anything else and I feel it embodies the spirit of a motorbike. You sit on it, rather than in it. It has handlbars, rather than a steering wheel. And so on......
The Polaris to me embodies the spirit of kit cars like the Caterham 7 or Westfield or other low volume track day oriented cars like the KTM X-Bow, Ariel Atom, Radical etc. They usually have off the shelf powertrains, suspension etc, as the Polaris has been descibed as having above.
The official designation as a bike by some states is clearly just legal adminstrative nonesense as they have no idea what to do with it. We have a vehicle class called 'tricycle' in the UK which doesn't require a helmet and can be driven on a car licence. The spyder falls into this category in the UK. Not sure what the Polaris would come under here, but defintely not a bike!!
As for looks, well beauty is always in the eye of the beholder. I quite like it from the front and front 3/4 view. However, I could not live with that rear:
View attachment 136423
It looks like it was on a fairground ride and somehow came loose. Quite simply horrible. I really cannot believe they released it looking that unfinished at the rear. Sorry SS owner but it's got a hideous ass!!