Vehicle sliding door assembly

A vehicular door assembly for a motor vehicle, comprising:

• a vehicle door;
• a guide rail attached to the vehicle door, the guide rail having a first rolling surface facing a first direction, a second rolling surface facing a second direction and a third rolling surface facing a third direction, the first direction being opposite to the second direction, and the third direction being different from the first and second directions;
• a self-adaptive carriage coupled to the guide rail for relative movement between the guide rail and the self-adaptive carriage over a length of travel that is defined by the guide rail and the self-adaptive carriage, the self-adaptive carriage including a body, multiple rollers each carried by the body and adapted to rotate about an axis, the rollers engage the guide rail along at least a portion of the length of travel with at least one roller of the multiple rollers biased into engagement with the first rolling surface, at least one roller of the multiple rollers biased into engagement with the second rolling surface, and at least one roller of the multiple rollers biased into engagement with the third rolling surface;
• a bearing arm pivotably connected to the self-adaptive carriage, the bearing arm having a pillar mount adapted to be connected to a pillar of the vehicle;
• and
• a control member interacting with the self-adaptive carriage to set an angle of the door relative to the bearing arm along the length of travel.