The Dodge Challenger is a vehicle produced in three different generations. The first and current generations were sports cars, while the second generation was an economical compact car. The third generation Challenger was introduced in the 2008 model year and is still in production. The Dodge Challenger SRT Hellcat is the vehicle’s high-performance model. The Hellcat, equipped with a supercharged 6.2-liter HEMI engine, produces 707 horsepower and 650 lb-ft of torque.