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Several prototypes of the 2015 Dodge Challenger SRT8 Hellcat driven by members of the SRT development team were grabbed on camera by our spy photographers.

Rumors of a supercharged HEMI V8 6.2-liter engine codenamed "Hellcat" emerged in May and have been confirmed today through these prototypes. The report said the powerful engine would make its debut on the next-gen Challenger which should be out for the 2015 model year once production starts mid-2014.

These prototypes which are probably test mules of the next-gen model were hiding what seems to be a lower and larger air intake indicating that more air will be going through the front fascia, while at the back of the car we notice a different exhaust setup. All these changes should allow the HEMI V8 to churn as much as 640 bhp (477 kW), making the Challenger Hellcat a worthy adversary for the Chevrolet Camaro ZL1 and SRT Viper.

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