I'm very interested to see what car(s) they choose and what the modification packages look like. I like driving more than I like building and tweaking so this formula appeals to me.
It looks like they're talking about having a modification package for all cars and a separate optional "safety and durability" package for the track. I hope they have a way to performance balance the cars that aren't running the track package. Otherwise, I don't see how a car lugging around 70 pounds of rollbars and oil coolers would be competitive with the cars that aren't carrying the extra weight in an autocross setting. If your track version of the Club Spec car isn't competitive with the autocross version, the whole idea of "one car for all disciplines" is broken.