The LPG (Polish: Lekkie Podwozie Gąsienicowe, Light Track Chassis) also named Universal Track Carrier, is Polish light armoured personnel carrier and weapon system chassis developed by Huta Stalowa Wola.

Initially, in 2004, the Azalia fire control system command vehicle was built onto the KTO Ryś wheeled transporter, which was not, however, adopted in a wider scope into the armament of the Polish Armed Forces.

In 2008, the Land Forces decided to use the rebuilt chassis of the withdrawn 2S1 Goździk self-propelled howitzers, previously manufactured by Huta Stalowa Wola (HSW) under a Soviet license, for the needs of command vehicles.

The deep conversion of the vehicles was developed by the HSW Military Production Center in cooperation with the German company FFG (Flensburger Fahrzugbau GmbH), which developed the modern G4 powerpack drive unit (engine with gearbox and accessories), hydrostatic drive system and driver's station.

The first three command vehicles (the WDSz prototype and two WD) were handed over to the army on 30 November 2012, as part of the first AHS Krab howitzer division module.

Several vehicles were transferred to the Ukrainian Armed Forces along with AHS Krab howitzers during the invasion of Russia in the spring of 2022.

The so-called "bathtub" was additionally reinforced from the inside with ARMOX steel armour and raised for the development of command vehicles or adapted for the installation of the Rak mortar turret system.

The power pack is placed in the front of the vehicle, which improves crew safety and makes servicing easier.