Open the dlc.rpf file in OpenIV, go into the “圆4” folder until you find the files that end in.Enable edit mode on your OpenIV and drag the dlc.rpf file into OpenIV.Get OpenIV downloaded on your PC and start it.
Make a new folder in your PC and make another folder called stream inside of it.Download the addon vehicle from the internet For example: GTA5 Mods has a variety of vehicles.How to Add an Addon Vehicle Onto Your FiveM Server