I've now joined the paint chipping on M Sport crowd. A close look after washing the X5 showed a lot of chips on the rear flares and side skirts. It's not too noticeable being white but it is there. It had looked like 19s didn't cause the chipping but they do.

I want to do large mud flaps behind the front tires. Shouldn't that help?

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Richard
Sir Snaps-a-lot, 9 Time Dragon Slayer (54 runs!)
2011 X5 50i Alpine White, Biege Nappa /Lt Poplar M Sport
2009 Z4 35i, Black Sapphire/Ivory-Black/Anthracite

Gone but not forgotten: '08 550i, '06 X3, '06 650i, '02 M5, '99 540i