I liked the days when Maseratis were Maseratis, not part Ferraris; when the notion that VW could own Bentley was absurd; and when Lamborghini and Audi had virtually nothing in common. Saab owned by GM? It is to laugh.
When cars had character, few had more character than the Citroen SM. I owned one, and loved it... although the SM designator was appropriate -- it's not an easy car to own. It was never a great collector car, and can still be had for not much (initial purchase) money. Do your own work, or prepared to be poor.

I remember driving on the PA turnpike at a good clip, at which the car felt very happy, and sensed that there may be a gendarme ahead. I slowed by thirty or forty mph, but was still nabbed for substantially over the speed limit. Incredibly smooth ride, remarkably secure feeling at speed, and quite good handling in a French sort of way.
I came across this article, and thought others might be interested. It's the car for engineers who think well outside the box. There was scarcely anything ordinary about this car, and much of it actually worked (and some of it caused the cars to burst into flames).