A support device is for a vehicle having a body, a roof spaced above the body and a seat back. The support device includes a base or body connectable with the vehicle and having a mounting portion configured for attachment of the seat back and a recess providing a storage space. A roof support has a first end connected with the base and a second end connectable with the roof. The roof support is configured to retain the roof spaced generally above a remainder of the vehicle. Preferably, the roof support includes two struts extending between the base and the roof, the base transferring the weight of the roof from the struts and to the vehicle body. Preferably, the struts each include a fluid passage extending between the roof and the base, the passage being configured to discharge fluid beneath the vehicle body.