I would estimate that the Challenger would be in the mid to high 30's range... which is quite a bit cheaper then where the Shelby GT500 is supposed to be.
So, the Challenger should not need to compete HP vs HP...
The Challenger SRT8 however, that would probably be low to mid 40's and would compete with the GT500 and thats where we would see increased horsepower
The damn thing isnt even here yet and we are already wanting for the SRT8 version!