1/72 Trumpeter Russian T-54B Medium Tank - 07281 Stock Car and on its chassis was

and on its chassis was designed a standard army bus (at the time the more common term for it was "omnibus")

Further more

the first production models started coming out the assembly line

large rear fin

1/72 Trumpeter Russian T-54B Medium Tank - 07281 Stock Car and on its chassis wasThe layout of the T 54 is conventional, with the main armament comprising a 100mm rifled gun. The T 54 has been used more than any other tank since the Second World War. It is intended for combat actions involving tanks, combat vehicles, armored personnel carriers and other armored enemy targets. The T 55 combines a high velocity gun with exceptional long range endurance. The T 55 has a fully tracked, five road wheeled chassis with a low silhouetted