How does Koenigsegg dihedral synchro-helix doors works?

This is what they had quoted about this hinge system in Raptordoors website " They work on a geared rotational pivot that operates simultaneously with a parallel arm, in an outward arc. Balanced by gas struts the doors come out parallel as they swing up and rotate down to allow entry. The doors require minimal area around them and above the vehicle, giving complete access to the car in confined areas the only problem is that you have to buy the car to get the hinges. . And it comes with a huge price tag. So we designed our own Koenigsegg style door hinges better known as the ultimate car door hinge conversion. .or as we call it RAPTOR doors, or for the technical buff’s Recoil Actuated Pivoting Torsion Orbital Retractor Doors".

will update when i find more.Do check YouTube for seeing it in action .