Installed the electromagnetic, no-drill reverse sensor on the Black 1. The item is made in China - which things aren't nowadays! Performance is satisfactory.

Bumper removal instructions are posted in BabyBMW.net site - thanks for the reference. In general the bumper removal was made difficult as after the screws, you have to pry the bumper out of the clips. Most notable are the ones at the edge of the wheel wells...especially when re-installing.