John Hennessey and team answer the question: Which car is faster, Hellcat Challenger or ZL1 Camaro? Both vehicles are factory stock. www.HennesseyPerformance.com

Would you like to learn how to make fast cars faster? Check out Tuner School where our classroom includes a chassis dyno cell and a 1/4 mile dragstrip - all on the Hennessey Performance campus!
979-885-1300 | http://www.TunerSchool.com