Livery is based on the version the team ran at the Rolex 24.
To install drop the .mas file into:
rFactor 2\Installed\Vehicles\Ferrari_488_GT3_2020\1.45 (or most recent version available)
To install drop the .mas file into:
rFactor 2\Installed\Vehicles\Ferrari_488_GT3_2020\1.45 (or most recent version available)