Apparently, GE is not cataloging the previous P series locomotives (ie P42/32) I think this is due to Tier 2 emissions requirements. However,
they still have an upgraded P series spec but no official catalog listing.
This may be because that passenger engines are "niche" units and GE may only build them if a large order is requested.
I remember reading several years ago that GE did a spec for a AC dual
mode passenger unit for carriers like NJT and Septa. NJT was interested but they balked at the high unit cost. The only way GE would come down on the price was if a larger order was presented, so NJT approached Septa
if they would consider going in on the deal. Septa declined owing to the
fact that they have no diesel territory and no plans to operate such territory any time soon. So ultimately the idea died. I don't remember if this was an official news item or an internet post on a bulletin board.
You just shook the hand , that shook the hand, that shook the hand of John L. Sullivan!