Just my opinion, but to me, the Spyder is worse than both a sport/sport touring motorcycle or a convertable sports car:
- doesn't lean, and doesn't even corner as well as a Miata
- underpowered for the weight, doesn't accelerate worth ******
- can't work a line like a bike
- CVT transmission, can't work the clutch & gears to really enjoy the riding/driving experience
- have to wear a helmet & the gear, which I happily do to get the benefits of being on a bike, but since you aren't, you're also not enjoying the open air feeling in a convertable, especially on a hot day
- exposed to the elements, without the benefits of being on a bike
If something happened and I couldn't ride any more, I'd go for the sports car, and wouldn't try to fake the motorcycle experience on something that doesn't even come close. Again, this is just my opinion, but as they do manage to keep selling them, they must appeal to some people.