The Hellcat will be a stout competitor... on the drag strip. But in every other performance category that matters, sadly, it will fall short. Dodge needs a new platform BAD. The current platform was not designed for what they are trying to do with this car. The engineers say that the 275's are the max tire they can put on this car from the factory, which is sad for a so called performance car.
Also, the Hellcat will have limited limelight and will be overshadowed by the GT350/500 and the 6th Gen offerings. The '15 Mustang GT350 is right around the corner set to debut in spring of '15. The Mustang is on a brand new platform that has the GT outperforming the Boss 302 lap times. The 6th gen Camaro will be on a new platform that same time frame while the Challengers new platform wont be here till 2018!!

Yep, 2015 - 2018 will be some interesting years, again, between Ford and GM.