Just back from the mailbox w/ my new Bimmer magazine (it's always a good day when a new issue arrives)...they have a nice write-up on the E46 330i/xi/ci, nearly half of which talks specifically about the ZHP.

It does seem they got some of their facts wrong however -
They quote the package cost at $3600 when it was actually $3900
They quote the automatic rear diff. at 3.38 when it was actually 3.64

Nothing to get a fuss about though! One thing that did surprise me, and not sure it's true, but the article states only 8% of ZHPs built were ordered with alcantara seats. Seems low to me

Anyhow, good article if you can get your hands on it. Lots of nice things said about our cars :