The stereo is a bit better in the limited over the base i'm speaking of what comes with the car not aftermarket. As far as the manual is concerned a manual can be had in the limited and the limited does bring features that really are awesome in this car like the pedals from the AMG Benz cars, the stainless door sills, heated seats, TPS. Also the seats in the SRT are the exact same ones as in the limited only that they are partially covered in a faux suede known as Alcantara. And the limited can be had with either tranny.