During the 1980s, armed forces in Taiwan were looking for more capable AFVs. However, as some existing agreements with the USA prevented the supply with more advanced US equipment, such as later versions of the M60 and the newer M1 Abrams tanks, military production was forced to develop an indigenous design.

While still retaining access to supplies of older US equipment and components, the decision was made to create a hybrid tank from the available components and outfit it with the latest electronics. As such, Taiwanese engineers took the hull and chassis of the M60A3 and combined it with the turret of the M48, while installing the M68A1 105mm cannon and the latest US fire control systems available.

The result of this undertaking was the CM11. In the late 1980s, two prototypes were sent to the US for comparative tests against the M60A3, where the CM11 outperformed its counterpart in gunnery trials. Shortly after these successful tests, the CM11 officially entered service in 1990.

However, as the protection was seen to be somewhat lacking, the decision was made to upgrade the CM11 with ERA packages obtained from GIAT in the early ‘90s. Due to substantial weight increases and associated upgrade costs however, this modernization effort was only applied to about a dozen vehicles. In total, 450 CM11s were built for the armed forces, still representing the spearhead of the country’s armored units today.