Comparing: AMX 13 90 vs. T49

In the early 1960s, the 75-mm gun with a muzzle velocity of 1,000 m/s was deemed outdated. The vehicle received the new 90-mm F3 gun that used more powerful HEAT shells. This modernization did not require any significant changes to the turret or vehicle design. The first vehicles were manufactured in February, 1967. The existing vehicles underwent the gun modernization as well.

A variant of the M41 light tank with an enlarged turret and 90-mm gun. Trials started on May 5, 1954. The trials were a success, but the tank never saw mass production due to lack of interest from the military authorities.