Intsallation :

To install the car go to :
Grand theft Auto V / update / x64 / dlcpacks / patchday9ng / dlc.rpf / x64 / levels / gta5 / vehicles.rpf
and replace "rocoto.yft" "rocoto.ytd" "rocoto_hi.yft"

And if you doesn't have Patchday9ng go to :
Grand theft Auto V / x64e.rpf / levels / gta5 / vehicles.rpf
and replace "rocoto.yft" "rocoto.ytd" "rocoto_hi.yft"