Does anyone have experience of either of these products? I want to try and get the trim below the windscreen back to black.
As usual the internet provides a wide selection of good results for both products interspersed with a few unhappy users. The C4 is more pricey and you get less, but if applied correctly it lasts for years according to the blurb.
Before i make a decision i wonder if anyone here has a trusted view (or any other good alternatives)
I used Autoglym especially for black trim plastics, works a treat for me!