Depends entirely upon the market, age of Z4 and model.
Some options are key specific, others car specific.
Generally you can have options like door opening one or both on single blip, lock on drive off
Somewher on the site I have previously posted a list of all avaialble on a UK '03 model, however I suggest you call the dealer with your VIn/Chassis # and he'll give you the full list.
