Kael
Deity
Consider Chariots, keeping chariots can cause complexity concerns. Cutting components certainly can curtail confusion.
Don't cut Chariots, just differentiate them from other mounted units more. I think they should have difficulty (possibly the inability to move to, possibly a big combat penalty) in tougher terrains/features, possibly requiring roads to move there (I think Jeckel make a modcomp that could be borrowed for this).
I'm thinking War Chariots need to have collateral. Chariots should not be good at withdrawing like other mounted units. It might be appropriate to make them seperate unitcombat. If the AI could handle it I might recommend lowering their strength but letting them carry some cargo. out to the battle field for more conventional fighting, as historically chariots were often more useful as troop transports than in actual fighting.