May 21, 2014
All-new 2015 Dodge Challenger SRT with 600-plus horsepower HEMI® Hellcat engine delivers unrivaled performance, race-inspired interior and new technologies geared toward the driving enthusiast
  • New 2015 Dodge Challenger SRT Hellcat features the all-new supercharged 6.2-liter HEMI® – the most powerful V-8 engine Chrysler Group LLC has ever produced
  • New Challenger SRT's standard 392 HEMI V8 delivers 485 horsepower and 475 lb.-ft. of peak torque
  • Segment-first TorqueFlite eight-speed automatic transmissions available on both new Dodge Challenger SRT models
  • Dodge Challenger SRT with a Hellcat engine features new Pirelli tire technology with class-exclusive standard Y-Plus rated four-season tires to help handle extreme loads
  • Both 2015 Dodge Challenger SRT models ride on new, SRT-exclusive forged-aluminum wheels
  • New Dodge Challenger SRT with the HEMI Hellcat features the largest front-brake package ever offered in a Chrysler Group vehicle as standard equipment
  • All-new, driver-focused cockpit is designed for true performance enthusiasts with stunning style, premium materials, world-class craftsmanship and state-of-the-art technology
  • Functional, performance-designed exterior maintains Challenger's original muscle car heritage and key Dodge brand hallmark
May 20, 2014 , Auburn Hills, Mich. - The newly consolidated Dodge and SRT brands are launching out of the gate at full throttle, introducing the new 600-plus horsepower 2015 Dodge Challenger SRT with a Hellcat engine and its stablemate – the 2015 Dodge Challenger SRT – just one month after taking the wraps off the new Dodge Challenger 392 HEMI® Scat Pack Shaker at the New York Auto Show.
 
Driven by the five SRT performance hallmarks, the new 2015 Dodge Challenger SRT and Challenger SRT with the Hellcat engine are re-designed and totally re-engineered to be the most true-to-form muscle coupes on the market with performance-enhancing technologies inside and out. The Dodge Challenger SRT Hellcat will feature the most powerful V-8 engine ever produced by Chrysler Group – the supercharged 6.2-liter HEMI V-8. 
Source
Chrysler Media