Is it (weight)specific strength, or stiffness that you are after?
a couple thoughts... link stiffness can be quickly gained with geometry (rather than materials). and, anisotropic materials add a lot of design and build time.
btw, I was in charge of the suspension design of a Formula SAE car in my senior year as well (early 90's) And I was big into composites even before my egr degree. --Yep, you are on a frightful path.
