A rear door assembly having a bracket, a rear door, a first movement mechanism and a second movement mechanism. The rear door has a lateral side with a slot formed therein. The first movement mechanism is attached to a rearward area of a vehicle body structure and is configured to move the bracket and the rear door from a closed orientation covering a rear opening in the vehicle body structure to at least an intermediate orientation partially uncovering the rear opening. The bracket has a pair of support pins extending in that extend into the slot with the support pins being supported on rollers within the slot. The second movement mechanism is disposed within the rear door to move the rear door relative to the support pins of the bracket along the slot.