AHHHH all the alpha-numeric names and abbreviations, they hurt my head.
I agree that Z28 needs to be more than just the best engine and highest trim level. Like the Z51 suspension on the Corvette, it should be totally geared towards performance and racing, while the SS might appeal to those who want the true top trim level, with tons of features, fast, handles well, like you said just like the SRT line for Chrysler and Dodge. The SS should be the best of all worlds, comfortable yet capable. The Z28 should be
almost to the point where it couldn't be considered a daily driver. But just almost.