[BigBoyBlue]

The Z/28 has a very limited target market. Most people do not want such a "raw" car. The ZL1 has all the creature comforts and is faster in a straight line. It is also fast enough for most people on the track. Most won't want to pay the $20k premium for the Z/28 and only pick up a little more track capability. GM had to be pretty disappointed that the Z/28 only beat the ZL1 by 4 seconds (I think that was the difference) around the Nurburgring. I know it was wet, but GM was hoping for a wider time spread in order to validate the Z/28's large price premium.

The Z/28 is more of a advertisement for GM/Chevy's racing capabilities. They won't make much $$$ on the Z/28 directly, but it will certainly bring buyers into the lower Camaro trims.

Think of it: The SS is a niche car to begin with, the ZL1 even more of a niche car, with the Z/28 only shrinking the pool of potential buyers even more. None of the 3 should affect the other's values, unless there is some kind of a design flaw that they all share.