According to Green Car Reports, the E85-powered Challenger Hellcat also produces 670 pound-feet of torque with E85 compared to 650 pound-feet of torque in the stock version of the car. Serious Horsepower Performance also says that its E85-powered Challenger Hellcat would produce even more horsepower but is currently limited by transmission shifting.
Check out the video below of the E85-powered Challenger Hellcat on a dynamometer. Who says you can't drive an immensely powerful car without being environmentally-friendly at the same time?