Ceramic brakes not a good idea. They are susceptible to damage even from mounting wheels. They squeak like a mother, very expensive to replace, only beneficial for track purposes and aren't covered under BMW 4 year maintenance program. Save the $8700 and spend it on pads and rear tires and have lots more enjoyment.
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2011 M3 Sedan ED 3/24/2011
2003 330i Sport Package...still working like a champ. ED 2/14/2003