In 1957, Poland started designing advanced tanks and anti-tank SPGs. One such project was the SDP 58 Kilana with its gas-turbine engine. The armament and the power unit were designed using cutting-edge technologies provided by the U.S.S.R. To increase firepower, engineers used deep-rifled guns that were developed in the Soviet Union and given to Poland for testing. The project existed only in blueprints but became the foundation for later Polish tank destroyers.