That's not true, they had a very nice suspension, the Special completely independent, the glassfiber chasiss one had the front plate with only one damper in the center, whilst at the back the rear arm plate was one piece, though it had two dampers. These plates acted as a sort of roll bar as well due to the design. The special carbon fiber chassis only had this rollbar effect on the front though it had two dampers.
Google it, you'll find plenty of images and parts as well.
One unopened in box sold recently in Oz out of a collection of I think at least two. Keep an eye out, they pop up every now and then.
Team Greasy Weasel
The best upgrade to any car is some driver skill.