The Tatra 813 KOLOS is a Czechoslovakian heavy-duty truck developed from the 1960s onwards for military and industrial applications. It features a central tube frame chassis , permanent 8x8 all-wheel drive , and a particularly robust independent suspension – designed for rough terrain, extreme conditions, and heavy payloads. It was used, among other things, to tow tank transport systems, rocket launchers, and heavy-duty trailers.

The Mould King 20040 model faithfully recreates the distinctive silhouette and functionality of this vehicle using 4,733 building blocks and eight motorized drive wheels . It is controlled by a combination of 6 L-motors and 2 M-motors , connected to a remote control or app (Bluetooth).