The black plastic trim like the paint on Jaguars is really soft and very easy to mark even with careful washing using the 2 bucket method etc. Have you thought about getting those parts corrected then PPFed, this would prevent the swirls from returning.

 

Many thanks never thought of PPF will investigate cost and look for installer in the north east.

 

Make sure the PPF is the self healing type (I used Xpel Ultimate on b and c pillars). It actually worked quite well in alleviating the swirl issue and it really maintains the gloss black look without further hassle. Did it myself and the the b and c pillar forms were easy to cut to size. That being said, I tried to cover the d pillars but they have a bit of a complex curve to them. After the third failed attempt which may also be caused by being a little OCD (my wife says a lot OCD), I threw in the towel and now occasionally use polish compound with light pressure and foam applicator for 6-7 passes by hand and then a light pressure foam application of cleaner wax for 3 passes. This seems to clean them up pretty well. I really wish somebody sold self healing PPF pre-cut kits for b, c and d pillars......I'd buy the d pillars in a heartbeat.