Tonight I have been catching up on reading about one of my favorite cars - the Citroen SM. I have seen a lot of information but so far I have only come across a couple of good cutaway diagrams for the SM. I have always been fascinated by cutaway diagrams and how they reveal the inner workings of a machine. You can learn a lot about the interrelationship of the parts at a single glance.
Source: Citroen SM Description Technique (Press information booklet)