Vehicle with a lockable folding roof

The vehicle has driving units (10) to drive a roof between a deployed position to cover a cab interior and a folded position. Locking units formed of lock tabs (17, 18) and grooves (19, 20) are mobile between locking and release positions of the roof and are driven by displacement units (23). The grooves are formed along two side rails integrated to a frame and the roof is placed between the rails in its deployed position.