brake dust / debris on side of car

[cyrus_b]

hey guys,

i seem to get alot of black marks on the side of the car, behind the 2 wheel-wells, most which wont come off without a good wash. They extend pretty much the length of the car. They were even there the day i picked up the car from the dealer.

The funny thing is is there is nothing on the rims themselves, they're clean an a whistle. So im thinking its coming up off the road, but i've never had this issue before.

I was wondering if anyone else had this issue? as on my yellow z they are very noticeable.

And has anyone maybe used the moulded mudguards to solve his problem? They kinda look a bit small to do any real protecting.

Maybe this is why the US has those deflectors in front of the front wheels, just back from the front chin spoiler.

cheers, cyrus