I use a bumper gel on them and they shine up fairly well without the elbow grease. Good tip though about polishing them.

Show us a picture if you canSJG said:After giving the Antara a good wash I was looking at the Matt Black door pilar trims and thinking how they spoil the look of the car with the shinny black tinted rear windows you have these Matt black strips, so in a moment of madness I polished them to a nice shinny finish, probably not the best idea to try out on my car but the end result I like, a gloss black trim and shiny black windows, perfect.