Tony Stark was inspired by Howard Hughes, the magnate and playboy Howard Hughes , who combined his work as an aeronautical industrial with those of film producer and adventurous aviator. Howard Hughes was a millionaire at the age of 18.
Jarvis, the suit of Iron man is an acronym for “Just a Rather Very Intelligent System.” The Jarvis, when worn by the Tony Stark, can lift upto 100 tons, which is why it can lift up Hulk. Tony Stark make modifications in it so that it could now lift 175 tons and even combat Hulk.
In the Iron Man comics, Tony Stark owns Area 51. He acquired it from the USA Government to store the Reality Gem. But this is yet to be revealed in the movies.
Of all the Marvel heroes, Tony Stark is the richest. In fact, the Iron Man movie even made Robert Downey Jr. rich. When filming the movie, he was among the highest paid actors.
According to Forbes magazine, Tony Stark is one of the most opulent types of the Land of Marvel.
Before Robert Downey Jr. was finalized for the role, Tom Cruise was also considered for the role, but he did not feel comfortable with the script. Even Nicolas Cage was considered for the role.
Just like Tony Stark, Robert Downey Jr. also suffered similarly. He too had alcohol addictions. At the end of the 90s, the actor suffered from depression due to addiction and drug consumption.
As per the comics, Tony Stark makes an armor called Model 38, or Ex Termis. Ex termis is has nanoparticles in its body. To use it, Tony Stark just had to think about it and it would wrap itself around the body. The armor allowed Tony Stark to travel to space and dive into waters.
The costume used in the films has a total of 450 pieces and weighs around 50 kilograms. Although the costume is not available in the market, but one can buy parts of it and compile them to form the costume.