Yes, the Insubres, Cenomani, Boii and Senones, the main Italian Gaul factions, have chariot units.
Also the Veneti of north-eastern Italy have chariots too.
We gave chariots also to some faction of the central Italy, like the Etruscans, the Umbrians and the Sabines (those nations in the timeframe covered by our mod shared a common culture referred as the Etrusco-Italic "Koiné") but only to the general's guard, because the chariot was porbably still retained only as a "status symbol" of the leaders.
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