Installation:
1. MAKE A BACKUP!!!!!!
2. Use OpenIV to locate GTA Vupdatex64dlcpackspatchday1ngdlc.rpfx64levelsgta5vehicles.rpf
3. Copy and paste schwarzer.yft, schwarzer.ytd and schwarzer_hi.yft in the folder
from step 1 (GTA Vupdatex64dlcpackspatchday1ngdlc.rpfx64levelsgta5vehicles.rpf)
4. Use OpenIV to locate GTA VX64ilevelsgta5vehiclesmods
5. copy and paste schwarzer_mods.rpf in the folder from step 4 (GTA VX64ilevelsgta5vehiclesmods)
6. Use OpenIV to locate GTA Vupdateupdate.rpfcommondatalevelsgta5
7. Copy and paste vehicles.meta in de folder from step 6 (GTA Vupdateupdate.rpfcommondatalevelsgta5)
And your done.