When using E85 gasoline, the newly released Dodge Challenger SRT Demon 

170 has an incredible 1,025 horsepower and 945 pound-feet of torque. 

It can accelerate to 60 mph in 1.66 seconds and complete a quarter-mile distance in 8.91 seconds.

These stats are astounding without a question, but they take on even more 

extraordinary significance when you realize how much Dodge modified the muscle car's powertrain to make this feasible.

The only substantial component of the engine that has been carried over from previous iterations is the camshaft.