Thats really a nice setup.

Last week I was at the shopping mall and was starting to back out of the parking space, when shifting to reverse, the reverse sensor started beeping. I thought "oh great, guess that thing has gone crazy now" as I did not see any thing behind me. Then about that time in the side mirror I seen a little girl that must have been running ahead of her mother. This option just paid for it's self many times over.