When he returned to the Iron Man production office, Downey asked that Favreau be sure to place a Tesla Roadster in Tony Stark’s workshop. On a superficial level, this would symbolize that Stark was so cool and connected that he could get a Roadster before it even went on sale. On a deeper level, the car was to be placed as the nearest object to Stark’s desk so that it formed something of a bond between the actor, the character, and Musk.
