X5 exterior trims

Hi Dave,
I have a 2008 X5 with the extended wheel acrhes (black plastic un-painted ones) which are started to look a bit faded and I'm looking to see what youd recommend to use to smarten them up with the rest of the exterior trim?
I've ried a few products but they didnt last at all.

Also looking for a recommendation for a decent tyre dressing?

Cheers

Also looking for a recommendation for a decent tyre dressing?

Cheers
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I like auto glym tyre dressing, €9 in auto parts on the fonthill road

For plastic, Gtechniq c4 trim restorer does wonders. Expensive stuff, but lasts long.