Wall Street Journal – OUTSIDE HONG KONG’S HISTORIC Peninsula Hotel one recent weekday afternoon, two men compare their Bentleys. A gun-metal gray edition with the license plate “Iron Man” looks positively understated next to a fiery-red model whose gold paint flecks and hood ornament coated in 100 carats of diamonds sparkle in the sun. That vehicle, worth around US $1 million, is part of a nine-car luxury fleet that belongs to Stephen Hung, one of Hong Kong’s most ostentatious dealmakers. Hung, dressed in black pants and a T-shirt emblazoned with bright flowers and geometric shapes —both very tight and very…