A vehicle comprising: an occupant cabin; a retractable roof configured to move between a deployed configuration where the roof covers the occupant cabin and a retracted configuration; a housing configured to house the retractable roof when the roof is in the retracted configuration; and a moveable cover configured to close the housing, the moveable cover comprising: a cover body; and two fins each extending from the cover body, the fins being located on either side of a longitudinal centreline of the vehicle, and the fins each comprising a channel running through the fin from a first side of the fin facing away from the longitudinal centreline to a second side of the fin facing towards the longitudinal centreline.