Quote Originally Posted by JoshS View Post
T allows a bunch of things that are not allowed in SS. The most significant ones would be shocks/struts and diffs.

This proposal was shot down by the membership (and loudly) 3 years ago, due to, among other things, the perceived costs of the allowed mods.
Actually Josh, it was shot down by the mfg's. They threatened to pull support for racers running their cars if the SCCA turned SSB and SSC into T4 and T5. There was a letter circulating that was signed by several of the mfg reps that pretty much stated that (I may still have a copy of it somewhere). The CRB pulled the recommendation.