Warlord Games brings out the ancient version of the heavy tank with the release of their Sumerian Battlewagon and Platform Cart.
From them to you:
Add some hitting power to your Early Bronze Age Sumerian army with a Battlewagon and a Platform Cart, each drawn by 4 Equids (Donkeys or Donkey-Onager hybrids).
These models can be used to build the Early Bronze Age armies of the City-States of Mesopotamia and Syria in the 3rd Millennium BCE. They include cities such as Uruk, Ur, Lagash, Umma, Eridu & Kish in Sumer, and Mari & Ebla in Syria.