I have noticed quite a few people recommending Poor Boys Black hole, Not wanting to teach anyone to suck eggs but Black Hole is a Paint Cleaner, Glaze and a Filler. It is not a Polish so will not Cut or Refine the Paintwork and it is not a Wax or Sealer so won't provide any protection.
It is however a very good "Cheating" Product aimed at Dark Coloured Paintwork in the fact that once you have Machine Polished your car and a few Months pass you will pick up new Minor swirls from the wash/drying proceess no-matter how careful you are, You can use Black Hole by hand or with a D/A at low speed with a finishing pad to fill in those swirls and give the car that just Machine Polished glossy look again. However this process strips off any Wax/Sealants so you need to Re-Wax/Seal the Paint after using Black Hole.
Having recently done a 2-Stage paint correction on my Edition 30 "
which will be the first one its had in its 8 Year life" I want to try and keep that fresh looking finish I have achieved especially on a Diamond Black Car. For obvious reasons I cannot keep Machine Polishing it on a regular basis so Poor Boys Black Hole will do just the trick and I will probably use it every 3-6 Months prior to Wax top ups then apply a fresh layer of Wax to protect.
I am a big Collinites Wax fan but I am tempted to try the Poor Boys Black Wax or Dodo Juice Purple Haze.
P.S another product similar to Black Hole is Britemax Blackmax