Vehicle roof with a hinged panel

The vehicle has a tongue attachment arranged closer to a transversal front or rear edge of a front panel (26) and including a convex lower surface whose profile forms a circular arc on a pivoting axle (A1) in a longitudinal vertical plane. A housing is arranged in a front or rear transversal edge of a roof`s (12) opening that receives the attachment. A support surface of the housing is complementary to the convex surface.