The Honda adjustments came about because of two letters asking us to clarify the Del Sols, and their inconsistency vis-a-vis their mechanical siblings, the Civics. In addition, splitting up the Sis across the two different engines is analogous to what we did with the ITR Z3s. Wholly different engines, slightly different stock HP, identical chassis.

Perhaps we didn't need to answer the ITC question in Fastrack -- the author had already gotten his answer privately. But I disagree with Kirk that the answer changes anything, as nothing changes with respect to the actual rules, and certainly all the context isn't present in Fastrack (such as the actual question.) I agree with Travis that the answer there is a side effect of the desire to be more verbose and explanatory with every letter that comes in.