No. The Mammoth tank is from the Command and Conquer video game. I can find no legitimate reference that one was ever built by any country in the real world. Several years ago I saw an image of a Mammoth tank in a computer game magazine, but it was a computer image and not a photo of a real tank. * The 95-ton T-28 super heavy tank developed for the US Army in the 1940's had no turret, but it did have four tracks. Only two T-28s were built and neither was used in combat. * The German Panzer Mark VIII had a turret and two very wide tracks, looking like a Tiger II on steroids, and it weighed 188 tons. It was called the Maus (Mouse), but the original name was Mammut (Mammoth). 150 were ordered, but only two were made operational.

Probably not, tanks do have modern weaponry, which is more powerful than the ancient technology used to hunt mammoth's by early humans.

And tanks are made of thick, angled armors, giving them extreme strength against hits.

And tank's don't really die, it's more of a "stop working" kind of thing.

A bull mammoth

a mammoth represents leadership.

Wooly Mammoth :)