After 6 years of production (1969-1975) only 12,920 SM’s had been built, and unsurprisingly, there was no replacement. Citroen was never one to follow conventional wisdom. The SM incorporates Citroen’s hydra-pneumatic suspension, inboard front disc brakes, front-wheel drive, and swivel headlamps.
The Maserati derived 2.7 liter 60 degree V6 was an engineering marvel, though prone to timing chain problems. The top speed was reported to be 137 mph.