I actually bought the Paint Protection and Leather Protection for my AW 135i. So far so good but it's too early to tell. A condition of upholding the warranty they provide for the paint protection is that I must purchase the car wash from them. For my car the paint protection was actually outsourced to Six Star Solutions and I had to purchase the car shampoo through one of their outlets. Here's their website:
http://www.sixstarsolutions.com.au/S....Web/Home.aspx