[Cuda340]

I don't think anyone will go wrong regardless of their transmission choice. The 6-speed TREMAC has been proven in the Viper and the automatic has been used in all of Chryler's SRT cars for the past three years.

This is what Muscle Car Power magazine (July 2008 issue) had to say about the automatic:

The Challenger SRT8 puts power to the ground via an electronically-controlled five-speed automatic, with a lock up torque converter and AutoStick. AutoStick gives the driver the ability to select a higher or lower gear while the transmission controller calibration prevents fuel shutoff during power shifts."

"The W5A580 transmission is intended to provide the kind of performance feeling a muscle car should have...The setup is designed for smooth full-throttle launches, quick wide-open throttle up-shifts and quick two-step, kick-down shifts that are smoother than anything a hydraulic transmission could offer...Extensive use of an electronically modulated converter clutch improves fuel economy in normal, everyday driving conditions."