The Tesla Model X has Falcon Wing doors in the back that open up. Why? Because it makes it easier for passengers to get in and out of the car. Thanks to the extra headroom you won’t bump your head.
But there’s another reason why the Tesla Model X has Falcon Wing doors. They are useful in an extremely tight parking situation.
During the reveal of the Model X, Elon Musk showed how the regular doors on two other SUVs couldn’t open far enough for a person to get in and out, but he could easily slip in and out of the Model X since the door opened up.