The Pvlvv fm/42 was a Swedish attempt at creating a self-propelled platform for the Bofors 20 mm anti-tank/anti-air autocannon L/70 (Swedish designation 20 mm automatkanon (akan) m/40). The idea was to reuse the chassis of the failed Landsverk L-120 prototype tankette and fit it with the aforementioned weapon to trial the concept. The trials were somewhat successful and would lead to the development of the Lvkv fm/43.

The Pvlvv fm/42 (shortened Pvlvv fm/42) was introduced in Update 1.97 "Viking Fury" along with the initial Swedish ground tree. The Pvlvv fm/42 is a fast vehicle with a hard-hitting 20 mm cannon, making it a versatile vehicle. Its speed and manoeuvrability give it a feeling of driving a light tank with an autocannon similar to the Panzer II but with more vulnerability due to the exposed gunner and limited crew, making the Pvlvv fm/42 an easy vehicle to knock out. However, due to the 36-round drum and the versatility of the Lvakan m/40B cannons, it can deal with most opponents it will face, both on the ground and in the air.