Initially, the activity focused on the revision of earthmoving machines, then expanding in the mid-70s, in the installation of diesel engines on used cars.

[2] In 1980, the GD 178 AT 1.3 supercharged diesel engine, entirely designed and built by FNM, was presented at the Turin International Motor Show.

In 1991, CMD Costruzioni Motori Diesel was set up, which would acquire the entire FNM business branch and related know-how.

In the 1990s, CMD inaugurated the Atella 1 plant, expanding its business producing and selling marine diesel engines.

[3] In 2017 67% of the share capital was held by the Chinese Loncin Holdings group, while the remaining 33% was in Italian hands.