The E46 cabriolet certainly has both auto lights and wipers (as an option). My wife has it on hers, although you can't get the auto dimming exterior mirrors - internal only.
We also had it on a 2002 Seat (VW Group) Leon Cupra R, although the option was later deleted from UK spec models and only available on the continent - and we get more wet weather!!
Seems to be becoming more common on 'run of the mill' models now though. I guess if BMW do it then it must be a 'good' idea for everyone else to copy...............
