The rear suspension was not faulty..that was just Nader..people here at the time were just not accustomed to individual rear suspension, so he played upon their lack of familiarity.
The major fault with mine, besides the belt tossing problem, is that I had to put it up about every 6 months and make sure the screws which held the oil pan on, were still tight. Through the numerous heating and cooling cycles, they would loosen up.
VW solved that problem by using only screws which expanded and contracted at the same rate.
When I did trade that in, it was for a Beetle. My Corvair was like the one you posted, except hard top and a light metallic blue color.