Help mods

Hello. I put a mod police car for the fivem. I did everything right on OpenV. But I open the fivem and it continues using the original. How do I use the mod instead of the original? Should I change something on server.dfg? This is the first time I put mods. Sorry for the English.

You have to make it into a resource in the server, not on your gta directory. There are many tutorials here on the forums and i would recommend checking them out.