Backing this 6.1L V8 powerplant is a WSA5805 5-Speed automatic transmission, this was needed to keep the engine horse power and torque transferred smoothly to the rear differential. This 2008 Dodge Challenger SRT-8 has the aesthetics that all sexy Challengers are known for,. With this dark charcoal exterior and off set staggered stance performance rims and rubber this car is one true street animal