The basic one included the introduction of an electric turret drive and gun stabilization (in place of hydraulic one), installation of an auxiliary power unit (APU), modernization of the optoelectronic system through e.g. installation of new thermal imaging cameras, modernization of the driver's seat and a new anti-explosion, fire and mine protection package.

Three consortia formed to bid: The final offer was submitted by the third consortium and negotiations with the Inspectorate of Armaments [PL] began.

In December 2014, the consortium submitted the final proposal based on the solutions of their foreign partner Krauss-Maffei Wegmann, but in 2015 the procedure to select the contractor was terminated due to formal deficiencies and the low participation of Polish industry in the program.

[4] On December 28, 2015, an agreement was signed between the Inspectorate of Armaments (Inspektorat Uzbrojenia) and a consortium consisting of PGZ and Bumar-Łabędy for the modernization of 128 Leopard 2 tanks with an option for another 14 units.

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 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.

[12][13][14] The contract was annexed five times, 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 vehicles.

[10] 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.

The differences in the field of tanks in the Leopard 2PL and Leopard 2PM1 versions are that the machines in the 2PLM1 version are equipped with an EGPT compartment warning system, a system protecting the network electronics against the start-up time, modification operating modes of the laser rangefinder, an additional socket for batteries and the PIX combination, allows the commander to automatically rotate the optoelectronic head of the PERI observation and aiming device to the "six o'clock" and "twelve o'clock" position relative to the tank's hull.

A monitor-control panel for the commander was installed, which enables alternative image transmission from the modernized EMES 15 sight and PERI R17A3L4 CP instrument, performing a full test of tower systems in cooperation with the modernized RPP testing block and control of tower systems from the level of the commander, which allows operation in hunter-killer mode.

[17] Tank propulsion units were subjected to general repairs, an auxiliary power unit (APU) with a power of 17 kW was installed, in addition to the installation of anti-shrapnel liners, crew safety was improved by the use of an explosion-proof system with cylinders with Deugen-N extinguishing agent and the fire system was modernized by adding a new control panel and cylinders with extinguishing agent, additional transport baskets were mounted outside the turret and adaptation of the evacuation equipment to the tank combat weight increased to 60 tons.