Some interesting points about charioteering, and about the sport that became the panacea of the masses, panem et circenses, according to Juvenal, in this article noted on rogueclassicism:
Roman drivers steered their chariots using their body weight. They would tie the reins around their torso and lean to whichever side they desired to turn. This was done in order to free up their hands in order to use a whip or whatnot.
Another good piece about the sport here.
More about chariots here.
