it is prob the Black Magic Perl? If so I have done quite a few cars in the UK with this paint and can recommend Pinnacle and wolfgang combo....
eg:
once de-swriled and looking quite shiny I moved to Pinnacle Advanced Finishing Polish and a new polishing pad. 2 passes at speed 3.
Sealed with Wolfgang sealant using the Finishing pad, speed 3 one pass. Left to cure for 30 mins and wiped off.
Lastly it was time to top with the Pinnacle Souveran wipe on wipe off.
Glass treated with Simoniz Glass polish, alloys with Megs NXT metal polish, tyres with Megs Hi Endurance Gloss.
Detailer: Lots of diet coke! lol

and a damn good shower after over 8 hours detailing...
the afters:
and the showing off shots:
and lastly, Steve's fav!!! Where does the roof stop and the wall begin???!!!