A couple more things.

The SRT6 has different seats -- has some suede and also SRT6 on the headrests.

The SRT6 has stiffer suspension than the limited.

SRT6 comes with automatic only, although most Limiteds have the autostick as well.

SRT6 has a few emblems on exterior, on the speedo etc.

Beyond that, I think most everything else was previously covered.