Dci 80 has an intercooler, and the dci 100 has a bigger turbo and different injectors...I think. The dci 100 also comes with a six speed gearbox from the Laguna. I got that from a quick search, but not sure if I have it all right. I'm sure someone else will confirm either way.
Did the ph2 come with the 100 option? I'm sure I read when searching that it only came with the 65 and 80. The 100 came in when the ph3 was introduced.
Looking at possibly getting a 65/80 myself.
Just need to see what they're like test drive wise I guess.