I imagined such doors after having a hard time exiting a friend's car parked very close to another car, a common experience in Europe. The problem lies exactly in the feet having to find a way to slide into an opening near the back-end of the door, instead of stepping out normally close to the front-end of the door. And you better have a thin body or you cannot exit. I did a Google image search, and these double-hinged doors can be found in a concept car from 2011 : the MINI Rocketman. Images at this link : mini rocketman double hinged door - Google Search Slightly different design in this other concept car. Images at this link : Concept car turns into a party pad for chill millennials - Wheelive Use the radars inside the model S to detect the cars or walls close to these doors, and pressing a button would let the computer determine the optimal opening of the doors, and block them once open, maximizing the space for your exit, and relieving the stress associated with the fear of scratching your door or another car. What do you think ?