I don't see why as that would be very unfair?
The base price for the SS Camaro is $30,990 whereas the Challenger SRT8 starts at $39,995 I believe? And the GT500 starts at $39k or thereabouts?
Plus the SS is just the base model V8 in the Camaro line up (no "special" model like the Shelby or SRT8 yet) so makes sense to compare it to the other base(ish) model V8's from the other two...