Does gta online money buy story mode upgrades?

Grand Theft Auto Online is a separate multiplayer component of the Grand Theft Auto V franchise. The online portion allows players to earn in‑game currency through missions, races, and other activities, which can be spent on properties, vehicles, weapons, and other online‑specific items. The single‑player story mode of Grand Theft Auto V uses its own progression system and does not share in‑game currency with the online mode. No source indicates that online money can be applied to story‑mode upgrades, and the two modes are treated as distinct in terms of economy and progression.