As we reported back in May, Chrysler is working on a more powerful Dodge Challenger to rival the Chevrolet Camaro ZL1 and the Ford Mustang Cobra. Codenamed “Hellcat”, the beefed-up musclecar is expected to go into production in mid-2014 with about 640 HP under the hood. Unhappy with the long wait? No need to ... [...]Source: autoevolution