Cleaned the car today but didn't get a very nice surprise.
I've done loads of miles this week (nearly 1000), mostly in the rain.
When I was cleaning the rear I realised that dirt particles (soot I think) have ingrained the tiny surface scratches on the tailgate and bumper (which were previously not visible). It is very noticeable under the seat badge used to open the boot.
How can I get this off!?
It's not coming of with shampoo!
Any help greatly appreciated!
EDIT: the car is OVNI
I've done loads of miles this week (nearly 1000), mostly in the rain.
When I was cleaning the rear I realised that dirt particles (soot I think) have ingrained the tiny surface scratches on the tailgate and bumper (which were previously not visible). It is very noticeable under the seat badge used to open the boot.

How can I get this off!?
Any help greatly appreciated!
EDIT: the car is OVNI