2020. On February 18, 2016, a detailed agreement was signed with a German partner, which specified the terms of cooperation between ZM Bumar-Łabędy and Rheinmetall. The contract assumed that the German company would be responsible for: developing the tank modernization project, preparing the necessary technical documentation together with Polish partners, making a prototype of the 2PL version car and tanks of the trial batch (five of which includes the process of training Polish specialists and technology transfer to Poland), providing ZM Bumar-Łabędy with the necessary technical support in starting production of serial wagons, providing necessary tools and transferring know-how technology. During the Eurosatory 2018 trade fair, representatives of Rheinmetall announced the completion of factory tests of the Leopard 2PL prototype tank. In August 2018, the vehicle was sent to the Military Armored and Automotive Institute in Sulejówek, where it underwent further national tests in Poland. In 2018, Reinmetall handed over to ZM Bumar-Łabędy the first pre-series copies, which opened the way to the modernization of machines already in Poland, after the positive completion of testing the prototype vehicle. The prototype tests were prolonged, which influenced the modernization of further copies and their delivery to the recipient. During the prototype testing there were also problems with the chassis, the repair of which prolonged the testing process, which meant that serial production could not be started. The prototype was completed on May 8, 2020. On May 28, 2020, the Polish Land Forces received the first copies from the pre-series party. The contract was extended until the end of July 2023. The contract was annexed five times, this was mainly due to not taking into account the restoration of efficiency of some tank elements, which turned out to be necessary and the different state of wear of individual copies. The final cost of the program increased to 3.29 billion PLN. Description Leopard 2PL is a third generation Main Battle Tank, made in cooperation with Polish Armaments Group and Rheinmetall Landsystems. The tank is designed to master and maintain the area, and support fire from deck weapons of mechanized and motorized subunits, in all weather conditions, both during the day and at night. As a result of the work, two versions of the vehicles were developed: the Leopard 2PL version, which is currently supplied to the military, and the Leopard 2PLM1, which was created by decision in 2018. The German partner is responsible for