A stowage mechanism 30 for a rear roof member 6 of a motor vehicle 1, 101 is also disclosed which is particularly small allowing it to be easily packaged in the motor vehicle 1, 101. The stowage mechanism 30 uses a combination of a chain 31 and a guide slot 32 to control the movement of the rear roof member 6 between raised and stowed positions which require the rear roof member 6 to be rotated, moved forwards and then lowered to reach the stowed position.