In 1972 Motortrend named the Citroen SM the Car of the Year marking the first time a foreign car was selected for this coveted title.

In the 1960s, Citroen entered into negotiations with several companies including Maserati, the result of which was the SM sports coupe with a 3.0 liter, 4 valve, V-8 engine developing 180 horsepower. This drove the front wheels via a five-speed synchronmesh gearbox. It featured power steering and disc brakes.

The Citroen SM was a grand touring machine that was in production from 1970-74. It was powered by a 3.0-litre, V-6 Maserati engine with Weber 42 DCNF carburetors. It has front-wheel drive and hydro-pneumatic suspension.

A total of 12,000 SM series cars were built but only 2,300 were exported to the U.S. market. The Sunroof option is very rare and only available in 1973