A vehicle includes a foldable roof top and a trunk having a luggage compartment. A trunk lid is movable between a closed lid position in which the lid covers the trunk and an opened lid position in which the lid provides trunk access. The roof is movable between a closed roof position in which the roof parts cover the vehicle interior and an opened roof position in which the roof parts are folded and stored within the trunk over the compartment. When the lid is in the opened lid position the roof is movable from the opened roof position to a loading roof position in which the folded roof parts are raised over the trunk to provide compartment access. A blocking device prevents the lid from unintentionally closing when the lid is in the opened lid position and the roof is in the loading roof position.