While it isn't known exactly how many different suits of armor Tony Stark (Robert Downey Jr.) has in Iron Man 3, new photos reveal two more specialized suits. The first one shown is the Mark 17, an "Artillery Level RT" suit known as the Heartbreaker. The Mark 38, dubbed Igor, is used specifically for heavy lifting. With unlimited finances at his disposal, it seems entirely possible that Tony Stark has armor specifically geared towards any particular task he needs accomplished.
Iron Man 3 was released May 3rd, 2013 and stars Robert Downey Jr., Gwyneth Paltrow, Don Cheadle, Guy Pearce, Rebecca Hall, Jon Favreau, Ben Kingsley, James Badge Dale. The film is directed by Shane Black.