Just got a E 90 M3 Silverstone with DCT, Prem/Tech/Cold, Carbon leather, 19's, Extended Black, Enhance Sound, PDC, Ipod...but no alarm.
I left the car to the dealer overnight so they can put an OEM alarm. Even willing to pay $730 to get it installed-ouch! Got the car back today and was told they can't do it. Any car made after 3/09 can't have it added after build. I guess you can still order it for custom build though. I thought it was silly that an alarm on such a car is not even a standard.