thanks for the tips - i will keep in mind, if i go for it... it is just a very nice specimen of the E90... i could not find anything like that in a while...

i am worried about the auto relock - we had an E34, that had an alarm, with auto relock, windows roll up, remote engine start - was installed at the Guaranteed Alarm in Brooklyn, right on the Coney Island Ave, at the exit by the belt parkway... (or, park beltway?)
We had it in for state inspection, and i told the guys not to leave the keys inside, as it will lock up itself... i get a phone call, come and open your car... turns out, the Einsteins removed the keychain remote control (!!!) off the chain, left the control inside, and kept the key outside. of course, the car double locked itself, rolled the windows up and that was all she wrote... when i came to the shop, they were like, we kept the keys outside, like you told us... MORONS!!!! whose signature on this forum has the line that there is always a fool that can outdo the foolproof design...
so, i am very cautious about the auto relock...