I gotta laugh at some people...can GM do anything right? Like any of us broke asses can afford a $45K car let alone $60K....so what's it matter?
So basically, in your eyes, any performance car regardless of options should be priced under a Corvette? The Z28 is a direct competitor for the GT500...which.....is priced over a Corvette so what is the big deal? Not everyone wants a Corvette. Would I personally buy a Z28 over a Corvette? It depends, I would if it was a 1LT 'vette...if it was a fully loaded GS then no. The Corvette is a 2-seater with limited cargo storage and is a nightmare to park anywhere in public. The Camaro is at least something you could drive every day. So, to compare the two isn't fair, it's apples to oranges.
It's not that cut and dry...while the Corvette is GM's flagship car it's not the baseline for performance pricing.
To suggest it should be at $45K is downright comical, a fully loaded 2SS/RS is around 40K, so you're saying GM should offer the LSA and associated upgrades for a mere $5K?

Lets even downgrade the options on a SS for a bit, at $35K it's still only a $10K option for the motor? You can't even buy the motor from GM that cheap.
The GT500, fully loaded tops out at around $58K with dealers jacking those prices up bad.
So lets say Motor Trend overshot the price by $5K, even at $55K it's STILL in line with the competition. Everyone wants something for nothing, this car won't exactly be cheap to build and it's not going to be built for people like us that want a Camaro, it's for the upper echelon of guys that want something to run against the GT500's of the world.