Here's an email I got from a reader recently regarding the 3M Invisishield MINI Clear Bra that is a dealer installed option:

I picked up my new liquid yellow MINI on October 7th. I am having a problem with stone chips on the bonnet. I contacted the dealer about the problem wondering if there is any protection system to prevent this. The dealer told me there is a film they will install on the bonnet, headlights and mirrors to help prevent stone chips and bug marks. It is made by 3M. Has anyone had this installed or heard about this product? Any information would be helpful.

Does anyone have any experience with this product or others like it?