The AMX-40 was developed as a private venture specially for the export market. It was first revealed in 1983. The AMX-40 uses a number of components of the AMX-32 prototype MBT, however it is considered as a new design. Four prototypes had been built by 1986, unfortunately no production orders were placed on this MBT.
The AMX-40 main battle tank has all-welded hull and turret with composite armor on the frontal arc. Frontal armor can withstand hits of 100-mm projectiles. Vehicle is fitted with NBC protection and automatic fire suppression systems.