ON A BLACK CAR THE BEST TO DO IS AUTO GLYM SUPREME POLISH I USE IT ON PORSCHE S AND ALL THE TOP CARS BUT 2 PROBLEMS

ITS ONLY FOR TRADE BUT YOU MY GET IT ON EBAY? (2) IT TAKES A WHILE REALLY NEED TO RUB IT IN BUT THE FINISH IS 1RST CLASS.THAT WHAT MY BUSINESS USES
CHEERS
CRAIG