Launch 'OPEN IV' in EDIT mode

Replace 'coquette3.ytd' AND 'coquette3+hi.ytd' in the following 2 folders:

   ...\  update  \  x64  \  dlcpacks  \  mpchristmas2  \  dlc.rpf  \  x64  \  levels  \  gta5  \  vehicles  \  xmas2vehicles.rpf  \    

AND OR

   ...\  update  \  x64  \  dlcpacks  \  mpluxe2  \  dlc.rpf  \  x64  \  levels  \  gta5  \  vehicles  \  mpluxe2vehicles.rpf  \

Done.