GTA3 convert and model author: Wildcat & Pumbars
GTA5 convert: Esprit 

Don't forget about backups

manana_hi.yft, manana.yft, manana.ytd
Install to Grand Theft Auto V\update\x64\dlcpacks\patchday3ng\dlc.rpf\x64\levels\gta5\vehicles.rpf\

manana_mods.rpf
Install to Grand Theft Auto V\x64i.rpf\levels\gta5\vehiclemods