Citroen SM Espace

Citroen SM Espace old car
Citroen SM Espace. This old car featured a two-part folding roof made up of slats. They were designed to slide sideways into the central spine to create a targa-type vehicle. The other advantage of this technology was that the spine was an integral part of the roof, thus avoiding the need to reinforce the structure of the SM in order to maintain its original stiffness.