The Chariot is replaced by the following unique unit:
Build this most primitive of the mounted combat units when speed is important, but stay on the offensive as it gets no defensive bonuses.
The chariot was the first true fighting vehicle. Ancient armies used it to transport archers and other troops to the battlefield, where they would disembark and fight. The Assyrians, whose archers and spearmen fought from inside the chariot itself, turned the vehicle into a fearsome offensive weapon. Few enemies were able to withstand an onslaught of Assyrian chariots. This devastating form of attack was soon adopted by many of the Assyrians' enemies, who used the chariot against them with good effect.