Not really; in the films he is constantly upgrading his suits, and has gone through 7 (IIRC). We almost always see some improvement from suit to suit (ability to fold up into a portable suitcase; improved firepower; resistance to cold; etc.). In addition, per Wikipedia, in Iron Man 3 Stark will be injected with a supersoldier virus, called Extremis.
Not really; in the films he is constantly upgrading his suits, and has gone through 7 (IIRC). We almost always see some improvement from suit to suit (ability to fold up into a portable suitcase; improved firepower; resistance to cold; etc.). In addition, per Wikipedia, in Iron Man 3 Stark will be injected with a supersoldier virus, called Extremis.