A power, split door system for a vehicle, comprising: a first vehicle door arranged to articulate between a closed position and an open position; a second vehicle door arranged to articulate between a closed position and an open position; first and second drive means (40a, 40b, 42) for articulating the first and second vehicle doors (14, 16), respectively, between the closed and open positions; and a control means (83, 85, 87) for controlling the first and second drive means (40a, 40b, 42) so as to control movement of the first and second doors (14, 16) between the open and closed positions; wherein a collision zone is defined as a region of the door system in which the first vehicle door and the second vehicle door could potentially come into contact with one another; wherein the control means (83, 85, 87) is configured to determine if both of the first and second vehicle doors (14, 16) is within a collision zone during powered articulation of the vehicle doors; characterized in that, in the event that the control means (83, 85, 87) determines that the first and second vehicle doors (14, 16) are both stopped within the collision zone during a powered articulation, the control means (83, 85, 87) is configured to: a) control the first and/or second drive means (40a, 40b, 42) to articulate one or both of the first and second vehicle doors (14, 16) out of the collision zone in a manner that avoids collision of the first and second vehicle doors (14, 16); b) control the first and/or second drive means (40a, 40b, 42) to articulate one or both of the first and second vehicle doors (14, 16) in a reverse direction to the direction they were being articulated in when stopped and into either their fully open or fully closed positions in an appropriate manner that avoids collision of the first and second vehicle doors (14, 16); or c) control the first and/or second drive means (40a, 40b, 42) to maintain the first and second vehicle doors (14, 16) in a stopped condition. a first vehicle door arranged to articulate between a closed position and an open position; a second vehicle door arranged to articulate between a closed position and an open position; first and second drive means (40a, 40b, 42) for articulating the first and second vehicle doors (14, 16), respectively, between the closed and open positions; and a control means (83, 85, 87) for controlling the first and second drive means (40a, 40b, 42) so as to control movement of the first and second doors (14, 16) between the open and closed positions; wherein a collision zone is defined as a region of the door system in which the first vehicle door and the second vehicle door could potentially come into contact with one another; wherein the control means (83, 85, 87) is configured to determine if both of the first and second vehicle doors (14, 16) is within a collision zone during powered articulation of the vehicle doors; characterized in that, in the event that the control means (83, 85, 87) determines that the first and second vehicle doors (14, 16) are both stopped within the collision zone during a powered articulation, the control means (83, 85, 87) is configured to: a) control the first and/or second drive means (40a, 40b, 42) to articulate one or both of the first and second vehicle doors (14, 16) out of the collision zone in a manner that avoids collision of the first and second vehicle doors (14, 16); b) control the first and/or second drive means (40a, 40b, 42) to articulate one or both of the first and second vehicle doors (14, 16) in a reverse direction to the direction they were being articulated in when stopped and into either their fully open or fully closed positions in an appropriate manner that avoids collision of the first and second vehicle doors (14, 16); or c) control the first and/or second drive means (40a, 40b, 42) to maintain the first and second vehicle doors (14, 16) in a stopped condition. a) control the first and/or second drive means (40a, 40b, 42) to articulate one or both of the first and second vehicle doors (14, 16) out of the collision zone in a manner that avoids collision of the first and second vehicle doors (14, 16); b) control the first and/or second drive means (40a, 40b, 42) to articulate one or both of the first and second vehicle doors (14, 16) in a reverse direction to the direction they were being articulated in when stopped and into either their fully open or fully closed positions in an appropriate manner that avoids collision of the first and second vehicle doors (14, 16); or c) control the first and/or second drive means (40a, 40b, 42) to maintain the first and second vehicle doors (14, 16) in a stopped condition.