i have just aplied this past weekend(2 coats) to two BMW`s, an 03 530i, and 04 z4, well see how it works, clayed the wheels prior, both with alot of problems of hard sticking brake dust. im sure people can vouch for the problems of brake dust and bmw`s. the worst i know. i`ll see in a few weeks when i wash how it has helped. maybe some people can chime in how it has worked them with bmw`s??
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