Can i use single player vehicle mods in gta online missions?

The single source available is a Wikipedia article that describes Grand Theft Auto V as an action‑adventure game developed by Rockstar North and published by Rockstar Games. It outlines the game's setting, main protagonists, and the structure of the single‑player story, but it does not mention modding, vehicle modifications, or any interaction between single‑player content and online gameplay. Because the evidence does not address the compatibility of single‑player vehicle mods with GTA Online missions, we cannot state whether they are permitted, supported, or likely to cause issues. In the absence of explicit information, the safest conclusion is that the use of single‑player vehicle mods in GTA Online missions is uncertain and not documented. Users should therefore be cautious and seek additional reliable sources before attempting to use such mods in the online mode.