All good points. My current Mk6 is Carbon Grey and I always wash it using the two bucket method. It gets clayed, polished, sealed and waxed 2-3 times a year but I know Deep Black is a whole other story.
Am I being lulled into a false sense of security by my current Carbon Grey I wonder.
I also had a mk6 Golf (a GTD) in Carbon Grey. I’ve also had more than my fair share of black cars over the years (five in total) and IMHO I’d say that Carbon Grey is a little easier to look after than Black. I did machine polish my Carbon Grey Golf when it was 2.5 - 3 years old as in spite of always using a safe wash method and not letting anyone else wash it, it did have some (inevitable?) light swirling at that age.
Would I buy another black car? Probably not, as they are a labour of love and I’m not getting any younger
. My current car is white which admittedly is difficult to keep clean at this time of year (but then most cars will be, whatever the colour). It is quite a forgiving colour though - doesn’t readily show swirl marks and it’s easy to touch in stone chips so they’re not noticeable.