I've said it before and I'll say it again: I think that allowing bigger wheels, lower ground clearance, and limited "aero," e.g. a "reasonable" wing - stuff to make our cars look more like DTM, etc. - would attract more interest (racers, spectators, media) to the class. Those things have become common bolt-ons on the street and are more consistent w/ the Class Philosophy than open computers.
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Ok, if we're going that way then let's get philosophical:

Why would that be a good thing?