I belong to another forum for the new challengers. If anyone is interested you can read this thread:
http://www.challengertalk.com/forums/f5/2015-challenger-information-thread-98814/
2015 What's New:
New: "LA" series, major refresh
New: All-new interior
New: All-new electrical architecture system
New: 6.2L Supercharged engine (SRT Hellcat)
New: 8-spd transmissions (all models)
New: Blind Spot and Cross Path Detection
New: Brembo 6-piston front brakes (Hellcat)
New: Competition suspension (Hellcat)
New: Customizable color TFT instrument cluster display
New: Dual zone climate control
New: "ecall" - one-touch 911 access, Roadside Assistance Services & crash notification
New: Fascias, refreshed front and rear
New: Forward Collision Warning
New: Halo headlamps
New: HD Radio
New: LED split taillamps
New: LED daytime running lamps
New: ParkView rear backup camera
New: Performance Pages screens, advanced (SRT only)
New: Radios, new 2nd generation 8.4" (models RA2, RA3, RA4)
New: Red brake calipers (Hellcat)
New: Remote lock/unlock doors, start vehicle, flash lights from any distance via the web or a smartphone app
New: Selectable drive modes (SRT)
New: Shark fin antenna (satellite radio)
New: Speedometer, 200mph (Hellcat)
New: Uconnect radio platform, 3rd generation, w/voice recognition technology for handsfree mobile phone, music, texting and navigation operation
There is an insider there dropping hints about what to expect from the SC challenger. He is indicating that their goal was 700hp but will likely come up a bit short. Also there is a great deal of speculation about the price. The going theory is between 75-80k. I personally feel like that is WAY too much for what you will get. Its still not getting a weight reduction until at least 2017 which means it will still be at a disadvantage to the Z28 and super snake. I was really hoping they would have a "core" option for the new supercharged challenger like they have now and get it down to around 58k....but as the insider indicates there are no immediate plans for that. I just don't see a lot of these selling until they shorten the car in 2017 and drop some weight.