Sorry for the bad english. No I dont mean on the tyre wall, but the tread itself. When at concours you take the wheels off for a good clean the tyre tread also must be nice black. But this must be at a safe way because after the show you will have to drive the car home.
So what stuff can you use for this?
its ok mate

was not taking the piss out of your english effort, just having a joke

your english is good

DONT put that shiny stuff all over the tyre tread

you wont be alive after your journey home!