So I finally decided to jump on the bandwagon and add modded cars to my GTAV. I added them to the proper directory in OPENIV (currently patchday11ng). However, when I start my game, the default vehicle models show up. When I exit the game and reopen OPENIV and navigate back into patchday11ng, the new files aren't there, they've simply disappeared. It has somehow reverted to the way it was previously and none of the models that I added are showing up. I tried to look into the forums to find a solution but I didn't find anyone with a similar problem to mine, anyone encountered this problem before or know how to fix it? Thanks in advance.

-GeorgeJetSam

Are you using a mods folder? 

Did you install OpenIV's ASI manager?

I did install the ASI manager, and I am not using a mods folder, however I made a copy of the game and I'm modding that version.

I got it fixed, I was told not to add a mods folder, but that's just to the original game...to make it easier not to get banned, I added a mods folder to my modded copy and its working fine.