[bm323]

From bmwblog, quote "The new convenience feature uses two sensor strips placed on different planes in the bumper, somewhat similar to the Parking Distance Control technology. The placement of the sensors makes it possible to identify the customer’s foot movement without any risk of confusing it, for example, with a ball rolling under the car" as taken from http://www.bmwblog.com/2010/10/05/ho...ng/#more-44552