 copy tailgater2 model files to 
Grand Theft Auto V\mods\update\x64\dlcpacks\mptuner\dlc.rpf\x64\levels\gta5\vehicles\mptuner.rpf\ 
and to 
Grand Theft Auto V\mods\update\x64\dlcpacks\patchday26ng\dlc.rpf\x64\levels\gta5\vehicles.rpf\  
(vehicle only)