In reply to MrJoshua:
I'm aware what Borg-Warner hath wrought with the T56, I just don't like all of the weight that came with it vs the T5 derivatives like the TKO. That said, a T56 is good used condition is probably noticeably cheaper than a TKO in similar nick. And I doubt the ratio juggle between top in a TKO and top in a T56 is going to affect miles per gallon that much.