I just came across this, not sure how, lol found it kind of interesting.

Object 279 Kotin[1] (Объект 279 Котин) was a Soviet experimental heavy tank developed at the end of 1959.

This special purpose tank was intended to fight on cross country terrain, inaccessible to conventional tanks, acting as a heavy breakthrough tank, and if necessary withstanding even the shockwave of a nuclear explosion. It was planned as a tank of the Supreme Command Reserve.

UNIQUE RARE Object 279 radio controlled r/c tank 1/16 RTR eBay