Gull wing doors are about the only thing there that are more complicated than features in other higher end cars. Air suspension's been in luxury cars for severa

Gull wing doors are about the only thing there that are more complicated than features in other higher end cars. Air suspension's been in luxury cars for several decades, and there are all sorts of complicated locking mechanisms for doors, including pneumatics in various mercedes vehicles. When you start getting into the luxury lines, you start seeing all the added complexity because everyone needs some signature feature to distinguish themselves from just being a nice comfortable ride.