Jon Favreau is friends with Elon, and actually based the current incarnation of Tony Stark after Elon (note the Roadster in Tony's garage in the first Iron Man, along with Elon's cameo appearance about an electric aircraft in Iron Man 2).

http://www.mnn.com/lifestyle/arts-culture/stories/tesla-ceo-...

Hell, I'm 30 and Elon is my hero. No bullshit, all execution.