The invention relates to a motor vehicle (1) provided with a roof (2) comprising at least one part (3) thereof which is fully movable for the opening thereof and extends from an area adjacent to a wind screen frame (4) to the rear particularly rigid part (5) of the roof transversely covering the entire width between the upper edges of the side windows (7) of said motor vehicle. The inventive motor vehicle is characterised in that the movable part (3) of the roof can be arranged in the fully opened position thereof above the rear rigid part (5) of the roof.