Are chariot archers in our period historically accurate? I can see no mention of them in Caesar's account of the Briton chariots that he bumped into.

Likewise, my (very) limited understanding of the Ptolomaic/Seleucid situation is that they only had heavy scythed shock chariots.

I think that's everyone who was using chariots at the time. Are there any accounts of archers? For that matter, are there any accounts of melee chariots that weren't the heavy scythed type (i.e. did people melee from chariot, or did they tend to dismount).