Mustang gt's are crap, challenger, and charger R/T's are crap Ive smoked all of the line and on the highway, you can add z28's to that list, and the new V-6 camaro havent raced a z28 new, that would be a loss. Tires, no traction controll, intake pluggs and wires I promise you big improvement, knowing when to shift and how to drive a must have.Tires,Tires, Tires!!!! a set of bad *** tires goes a long way!