Restoring External Plastic Trims

Hi and seasonal greetings.
The grey plastic trims on the Sussex EB have started to fade has anyone tried Angelwax Corona to restore to as near to original as possible or does anyone have any other suggestions?

Thanks

My Sussex trims are black. Are you sure yours are grey or faded black? I used Autoglym bumper care to bring back the colour but it only comes in black. My van is white so I suppose it depends what body colour you have as to what colour the trim is.

Another vote for Autoglym bumper restorer 

Autoglym Bumper and Trim Gel works for me.