I just washed my car and noticed a lot of small black spots along the sides of it, mostly concentrated around the wheels.
I figure it's because the car has no mudflaps, but they don't make any for the ZS AFAIK.
Anyway the sides feel very coarse, almost like sandpaper, and there's hundreds of tiny small spots on it.
It looks a bit like the stuff used to undercoat the car (to protect it against rust, cars rust extremely fast in Denmark because we use a lot of salt on the roads during winter)
I've attached a picture of it (don't mind the reflection of me )
So here's the question: How do I get rid of it ? My normal soap and sponge (it has a soft and a coarse side, I've tried both) doesn't do anything towards it.