I searched around a bit and didn't find anything, so forgive me if this is addressed elsewhere:
Is the ZHP's steptronic unit the same as can be found in normal 3-series cars?
The reason I ask is because I'd like to get a feel for it to decide whether I'd like it (I fear I've been spoiled by manually shifting the DSG in my VW) and there are a few run of the mill e46's in my area that I could test drive, but no ZHPs.