It's the end of an era for the Chrysler. The last Viper rolled off the production line in 2017 and Dodge's factory drag racer Challenger Demon has reached the end as well. The last of two of the wildest production cars ever made in car-crazy America are coming across the block together at Barrett-Jackson's auction in Uncasville, Connecticut. That's a grand total of 1,485 horsepower, along with a Demon Crate filled with narrow front drag tires, tools, and ECU modules for the Demon. All proceeds go to the United Way, making this historic pair of cars worth every penny when the hammer drops.