Yes, this may now sound herretic but one of the best ways to kill Chariots cleanly is to charge them with high shock cavalry. Strech them out in two ranks and it is very likely that you can route them at once. This does work very well against scythed chariots. Problem is that if it doesn't work out you will be in the hell of a mess, as chariots kill easily standing horses like I found out with the Seleucids. Light cavalry isn't much worse than heavy once melee is joint, due to the Ap bonus..

My fav Chariot killer is the Numidian camel lancer, very nice unit, fits perfectly with the Num. cavalry btw

Chariot archers seem to be more difficult to kill as their melee comrades, as the charge doesn't seem to work that fine against them...

OA