I believe the alarm may be ordered separately but it is definitely part of the optional protection pack we have ordered on ours which comprises front and rear parking sensors, an alarm and some kind of boot protector.
We ordered the pack primarily for the parking sensors. Personally I'm not that bothered about the alarm because given the number of false alarms most people ignore them these days or find them an irritant. Since the car has an immobiliser that should stop anybody driving off with your pride and joy...well, that's the theory anywayEdited by: Perusal