An agricultural vehicle (10) has an implement connection hitch (23A) including means for controllably moving the same relative to a rear axle of the vehicle. A control system controlling movement of the connection hitch (23A) is coupled with position determining means such as a GPS receiver and determines a location for the vehicle (10). During turning manoeuvres, the control system moves the hitch relative to the rear axle of the vehicle until it reaches an offset position (71) such as to reduce the turning circle of the vehicle (10) and a connected implement (19). The extent of offset may be determined automatically by the control system on identification of a connected implement.