The opportunity for SRT engineering to “one-up” itself comes to fruition with the 2009 Dodge Challenger SRT10 Concept. Power for the 2009 Dodge Challenger SRT10 Concept comes from the Dodge Viper 8.4-liter, all-aluminum V-10 engine with 600 horsepower and 560 lb. ft. of torque. This new halo concept delivers the well-known SRT credo of benchmark performance.