The Citröen SM was the corporate flagship, and it did the company proud during its five-year production run. Competing against models from Jaguar, Aston Martin and Porsche among others, the SM was able to score both in motorsports and accolades from the auto critics of the day. The lucky buyer of this one will be assured of having the driving experience that can only be found in a European GT car and of owning a rare car that won’t be seen on every street corner.